Non-Mercedes-Benz stick-on wheel weights must not be used for clearance reasons. As previously, clip on wheel weights 43a can be installed on the inside of the accessory wheel. For a listing of currently approved tires, please refer to the latest edition of the factory-approved tires Service Information in group We recommend that only factory approved tires be used on any Mercedes-Benz vehicle.
The use of snow chains with AMG light alloy wheels is not permitted. Front axle suspension 1. Remove front and rear wheels. If an original equipment alloy wheel is going to be retained as the spare wheel, five of the original wheel bolts must be kept with the spare wheel. Remove front axle springs using spring compressor, Special Tool 06 31 If the buckle latch is not inserted in the driver belt buckle or if the triggering threshold is exceeded, the driver airbag is triggered instead of the driver belt tensioner or additionally.
Page Spark Plug: Description and Operation Spark Plug View The spark plugs provide the gap across which the high tension voltage jumps, to create the spark that ignites the compressed air-fuel mixture. The center electrode is insulated from the spark plug shell by means of a porcelain insulator. The side electrode protrudes from the bottom edge of the spark plug shell.
It is positioned so that there is a gap between it and the center electrode. Q 4 83 30 lb. Q 4 83 15 lb. MTBE may be added up to 15 percent. Mixtures of Ethanol and Methanol must not be used. These blends must also meet all other fuel requirements such as resistance to spark knock, boiling range, vapor pressure, etc.
Gasoline Additives A major concern among engine manufacturers is carbon build-up caused by gasoline. DO NOT blend other fuel additives with the fuel. These additional additives only result in unnecessary cost and may be harmful to engine operation. Fort Worth, TX. While there may be a number of products available which will provide the required protection, all such products have not been tested for Mercedes-Benz vehicles.
The octane number posted at the pump must be at least 91 min. Model years and M. The octane number posted at the pump must be at least 87 min premium unleaded may also be used. The octane number posted at the pump must be at least 87 min. When only unleaded gasoline is being used, check valve clearance at half the recommended interval. Check valve clearance at half the recommended interval. For model year , all gasoline models except E 2.
As of model year , all gasoline engines require premium unleaded gasoline Use only premium unleaded gasoline meeting ASTM standard D In the U. The octane number is also known as the Anti-Knock Index. To maintain the engine's durability and performance, only premium unleaded gasoline is to be used. If premium unleaded is not available and low octane gasoline is used, follow these precautions: - Partially fill the fuel tank with unleaded regular gasoline and fill up with premium unleaded gasoline as soon as possible.
Do not exceed an engine speed of rpm if the vehicle has a light load two occupants and no luggage for example. Model years - and model year model E 2. When only unleaded gasoline is being used, check the valve clearance on engines with mechanically adjustable valves at half the recommended interval. Check the valve clearance at half the recommended interval. The rebuilt engines are tagged with a label Figure 1 indicating this. To prevent possible engine damage, check oil level and add break-in oil if necessary, before starting-up these engines.
High-frequency signals generated by the telephone system may be interfering with the normal function of the seat proximity switches. The proximity switches are located behind the left and right B-pillar panels. To prevent this fram occurring, modified proximity switches should be installed when installing a cellular telephone.
These switches are installed in vehicles within the Effective Serial Number Range below and may be installed in vehicles prior to production phase-in. Therefore, the ignition wires must be provided with terminals prior to installation. This requires the use of a crimping tool which is to be used as follows: 1. Using the old ignition wire as a guide, cut the new ignition wire to length.
Strip 6. Use the guide imprinted on the crimping tool. Twist the wire end tightly, and slip the terminal onto the bare end of ignition wire with a twisting motion. Position the jaws of the crimping tool close to the open end of the terminal.
Crimp sleeve onto insulation. See Figure: 4. Then crimp terminal onto ignition wire core by positioning crimping tool as far from the screw threads as possible. See Figure: 5. Slip ignition wire identification band over cable, if applicable. Screw spark plug connector and right-angle connector onto ignition wire. This creates a vacuum in both the globe and the tank. Then close the valve after unit is fully charged. When extraction of one vehicle is completed, open the dump valve and the vacuum in the tank will automatically recharge the globe while the oil is being transferred into the holding tank.
To empty the unit, close the valve between the globe and the reservoir, then charge the unit with 7 - 5 psi of shop air, move unit to bulk waste oil holding tank, place the hooked hose in the tank, open the exhaust valve and it will automatically empty.
The dipstick tube has an enlarged cross section and a formed extension at the top end. On the other side it ends a short distance from the oil pan bottom. Engine oil can be extracted using the dipstick tube. Note: Inserting tubular probes through the dipstick tube is NOT recommended.
Engine oil drain plugs will continue for the time being, although access to them may only be possible with the removal of engine compartment trim or noise encapsulation panels.
This portable unit Figure 1 utilizes the suction principle via an air-powered piston pump. The engine oil extraction is accomplished by connecting a specialized Suction Adapter from the unit to the dipstick tube. Additionally, a variety of flexible probes and fittings are also supplied for other oil removal applications e. Waste oil collected in the tank of the unit can be emptied using the unit's pump. Note: - Unit is powered by standard shop air supply.
Connect an ohmmeter between pin 1 and pin 2 of throttle valve side of the connector. Close the idle valve fully against the idle stop. Open the throttle valve slightly and place a. Push the throttle valve lever against the feeler gauge.
If the resistance reading is incorrect loosen the throttle switch mounting screws. With the. Retighten the mounting screws. Water - Use water which is clean and not too hard. Drinking water frequently, but not always, satisfies requirements. The content of dissolved substances in the water may be of significance for the occurrence of corrosion. If the water quality is not known, distilled or fully desalinated water should be used.
Push the screwdriver through the recess in the top section of the air filter housing and onto the adjusting device. Adjust as necessary. Switch off the engine. Remove the air filter. Knock in the steel tamper proof lock with an appropriate tool so that the lock is flush with, or deeper than, the bottom edge of the taper of the adjusting tower. Reconnect the purge line to the purge valve. Reinstall the air filter.
Start the engine, turn on accessories, and place the transmission selector in drive. When replacing a spin-on oil filter on M and M engines, ensure that the old filter gasket is completely removed from the base before installing the new filter, and that the gasket on the new filter is properly and securely seated in the groove of the filter and a film of oil is applied to the gasket. On all other engines which utilize a housing and cover, make certain that the old O-ring gasket is removed from the filter housing or cover before installing a new one.
Failure to do so in either case may result in a blow-out of the filter gasket and subsequent loss of engine oil, which will lead to engine damage. Effective Serial Number The modified component compartment cover reduces the possibility of water entry into component compartment and may be installed on earlier production vehicles. Note: If moisture is found in this area of the component compartment, the modified cover must be installed.
Model The modified cover two piece is attached to the cross-member in the component compartment beneath the windshield Figure 1. This is a current listing of factory-approved service products which are presently available in the U. Any product listed in future supplements, to the "M-B Specifications for Service Products" microfiche that is available, in the U.
We recommend that only approved service products be used in Mercedes-Benz vehicles. Additional information on the products listed can be found in the "MB Specifications for Service products" microfiche.
NOTE: Multi-viscosity engine oils sheet no. Grind off any excess PVC underbody protection before rebending the fender lip. Note: Do not overheat paint while applying heat. The fender lip is reworked over the entire area A, Figure 2 in several stages. A plastic hammer must be used to avoid damaging the paint.
Note: Repair any damage to paint or underbody protection. The tapered edges of the fender lip in area A should be checked for adequate clearance and reworked, if necessary. Evenly tighten wheel bolts to Nm.
AMG light alloy wheel bolts must be retightened after 60 - miles - km. Tightening torque: Nm. The diagnostics of the CIS-E control unit checks the function of the entire system. By means of the O2-sensor signal, it can be determined whether the air injection system is in operation. If a fault is recognized, it is stored in the on-board diagnostics of the CIS-E control unit.
Coolant temperature, air flow sensor position indicator, and throttle valve input are determining factors for CIS-E control of the EGR system. During deceleration fuel cutoff the EGR switchover valve is actuated for 1.
From the intake vacuum signal, which is measured by the ignition control unit, it can be determined whether the EGR system is functioning. If a fault is recognized, it is stored in the fault memory of the CIS-E control unit. Faults due to intermittent contacts are also recognized and stored as malfunctions. The stored faults can be extracted by use of the push-button and LED" or an impulse counter at the on-board diagnostic connector. The battery or the CIS-E control unit must not be disconnected before code extraction is completed or faults will be erased.
Stored faults are not indicated by this test. Only faults that are present in the system at the time of testing can be detected. This mode can be used for a quick test of the signals that are monitored. Signals to and from the control unit are tested in a dynamic state. An on-off ratio that is not oscillating fixed indicates a system malfunction. Remove the two fastening bolts A and B, Figure 3. Loosen bolt A, Figure 4 on side of bumper. Press sides of bumper downward and unscrew bolts A and B, Figure 5.
Position spacers arrows between fender and body as shown. Ensure that the holes align for easier installation. Finger tighten all bolts and visually inspect for correct alignment.
Tighten bolts. In this case, the mounting bolts should be checked for proper tightening torque and retorqued, if necessary. Replace the plug if the center electrode is rounded. Remove the air cleaner assembly. Remove the sensor plate stop bracket. Heat the sensor plate mounting screw with a heat gun and remove the screw. If it is not heated prior to removal it make break! Remove the sensor plate.
Clean the threads of the sensor plate screw bore with a 6 mm tap. Reinstall the sensor plate. Adjust the sensor plate. Reinstall the stop bracket and air cleaner assembly. This does not affect the operation of the vehicle, but may cause unnecessary concern for the driver when the indicator light is lit. To correct this potential problem, the Emission Control System will be checked and the Electronic Control Unit will be exchanged at no cost to you.
We urge you to contact your local authorized Mercedes-Benz dealer for an appointment. Parts will be available as of April , and your dealer will order the part as soon as you make an appointment with him.
Caution: According to federal regulations, it is unlawful to make adjustments when the test values are within specifications, i. Lambda "On - Off" ratio readings before and after adjustment must be listed on the repair order.
Additionally, if the "On - Off" ratio adjustment is claimed under warranty, the before and after adjustment values must be listed in the text field of the warranty claim. If a steel plug or ball is found to be missing or the tower is found to be damaged, the "On - Off" ratio must be checked. A tower should be replaced if damaged; a steel plug or ball must always be replaced.
The steel plug or ball is essential to prevent any unauthorized or unintended tampering which could lead to emission standards noncompliance, and also to keep the Emission Control System Warranty in effect. As a reminder, please make sure that the "On - Off" ratio is checked at idle and then checked again at rpm with the purge line disconnected and plugged. The values of these two readings must be within specifications in our service literature. Model Year Intro. Break-In Oil Sheet No. Consequently, the temperature ranges shown are merely guidelines, which can be exceeded in the upper or lower limits for brief periods.
Gasoline Engines and 2. Diesel Engines Diesel Engines , , Except , , 1. Except turbodiesel engine Rear Axle Differential Sheet No. Q2 09 15 gallon containers only Power Steering Sheet No. Specifications: Width: 25 inches diameter Height: 51 inches Weight: 80 lbs. Take into consideration whether individual components or the entire refrigerant circuit are to be replaced. Note: The following allowable labor operations should be used when submitting a warranty claim for this repair.
This information has been generated on March 10, The signal from this switch resets the control routine if the driver pumps the brake pedal during an ABS braking maneuver. This switch also controls conventional stop lamp operation.
Dexron II-D or equivalent. Fluid Capacity Measure toe angle at normal vehicle height, then measure again with a spring deflection of approximately 2. If toe angle is not within specified limits, an eccentric tie link rubber bushing with a center offset is available for adjustment, Figs.
Prior to removing the tie link bushing, mark position of eccentric bolt to rear axle carrier. To replace bushing with tie link installed on vehicle, use tool No. To increase toe-in, install bushing with arrow facing downward. To decrease toe-in install bushing with arrow facing upward. Page Model 1. The fuel filter housing is made of metal.
It is fitted into the fuel circuit after the fuel pump. The filter contains a paper insert with a medium pore size of 4 micrometers, backed up by a fluff strainer which retains any loose paper particles.
A support plate holds the filter in place. Service life depends on the amount of dirt in the fuel and. The directional arrow indicates proper installation. Installation of Lock Cylinder: - Install lock cylinder 36 in the cap 36b , push in key and turn into position "1". If the complaint cannot be eliminated, replace lock cylinder and the key which has been in continual use. Lubricants: Lock cylinder grease Part no. An oil consumption test is not necessary at this time unless the engine is equipped with new viton valve stem seals see 1.
Check the engine for external oil leaks around the valve cover, cylinder head, engine block, oil pan, etc. Note: Ensure that the engine oil level is not above, the MAX mark on the, dipstick. Mark valve cover with a white paint dot after repair.
Valve stem seal specifications Exhaust Intake D: 8. Toe-in value depends within certain limits on the semi-trailing arm position of the rear axle. Toe angle can be corrected by the installation of eccentric rubber mounts in the semi-trailing arms. Semi-trailing arm eccentric rubber mount part No. To reduce toe-in, install outer rubber mount A with arrow pointing toward the rear as shown, Fig. To increase toe-in, install outer rubber mount A with arrow pointing toward the front as shown in Fig.
A or Canada. It will be revised periodically to add or delete products according to the latest information received from the factory. Note: The chart see image supersedes ALL previously published viscosity charts. Select oil viscocity according to the lowest air temperature expected before the next oil change using the chart below image. Observe different coolant composition for CV engines. Avoiding ejection of coolant at high coolant temperatures. An even higher concentration once reduces antifreeze protection and impairs heat dissipation.
Reduced heat dissipation can lead to damage to components in the cooling system or damage to the engine. Water Use water which is clean and not too hard.
Drinking water often satisfies requirements, but not always the contents of dissolved substances in the water may be of significance for the occurrence of corrosion.
If in doubt, analyze the water. Period of use The maximum permissible period of use of the coolant can be taken from the maintenance booklet. Before pouring in fresh coolant, flush the used coolant out of the cooling system.
In the event of high pollution or oil fouling levels, clean the cooling system, otherwise damage can occur to the components of the cooling system. Disposing of coolants Pay attention to legal provisions and local wastewater regulations.
Repeatability in off-vehicle wheel balancing has always been an important factor. With most any wheel balancer, a technician can mount and balance a wheel to zero, given weights in 1 gram increments. While a wheel may seem perfectly balanced, the true test is to rotate the wheel on the balancer shaft 90, and degrees and have the wheel balance out to zero each time.
To accomplish this, accurate centering of the wheel on the balancer shaft is necessary. For off-vehicle wheel balancing MBNA strongly recommends that all original equipment, light alloy wheels and steel wheels for winter tires mounted on Mercedes-Benz vehicles, be balanced using balancing equipment as recommended in the MB Standard Service Equipment Program catalog. This will determine the repeatability and ultimate quality of the balancing operation. The two machined collets are held together with a flat elastic band.
Please contact: AGA, Inc. Tighten all negative electrical connections as well as exhaust manifold and flange, and loosen and tighten 02 sensor.
Negative electrical connection through engine and exhaust. Cause: 1. Intermittent or continuous malfunction of sensor while driving vehicle. Loose connection or intermittent interruption at connector sleeve Z solder joint in harness in CIS-E control unit plug. Remedy: 1. Check on-off ratio while driving tester needle must oscillate. If the needle of the on-off ratio tester moves slowly to the right end stop of the dial sensor at operating temperature , the sensor must be replaced.
Unplug CIS-E control unit and check resistance between socket 7 and socket 8. Nominal value: Ohm above 10 k Ohm. If resistance is below 1 Ohm, replace engine wiring harness.
The knock sensor which is mounted on the engine block is subjected to vibrations generated by knock. The vibrations cause a small distortion on the surface of the piezoelectric crystal, which consequently generates a small voltage.
Depending upon the intensity of the knock, the control unit will retard the ignition point for an individual cylinder between 2. Since this temperature lies within the range of overheating protection, the ignition timing will be retarded by an additional 3. Page - Standard air coupling connector provided. Check transfer case for leakage before checking oil level. Screw out oil filler plug arrow , tightening torque 50 Nm. Check oil level. Oil level is okay when small quantity of oil runs out or when oil level reaches up to bottom edge of thread in filler hole, add oil, if required.
If more than 50 cm3 of oil runs out of the filler hole, this indicates that the multi-plate clutch is leaking front drive or central lock. Check oil level in oil reservoir front left in engine compartment. Repair or replace transfer case on separate order. Note: In the event of high oil loss, determine cause and eliminate on separate order.
Fluid Type Figure 1. Models , If parts require replacement, only Ra-type components are to be installed. If a Ra compressor is not available as a spare part, be certain to drain the mineral oil from the new R12 compressor prior to installation.
Replacing Receiver Drier". Page Refer to the chart for the correct WIS document reference for the proper filling and bleeding procedure of the power steering pump.
Disconnect the NEG. Remove the fuel and injection lines from the fuel distributor, fuel injectors and the fuel pressure regulator. Disconnect the electrical connectors from the electro-hydraulic actuator and the air flow sensor position indicator.
Loosen the large hose clamp at the air guide housing. Remove the mounting nuts for the mixture control unit. Lift off the mixture control unit detach the idle air hose. Reinstall in the reverse manner. Run the engine and check for fuel leaks. If replacing either component, make sure that the screw below the air flow sensor position indicator is reinstalled correctly.
If a longer screw is used the air flow sensor position indicator will be damaged. Mercedes-Benz engines are designed to allow the extraction of engine oil from under the hood via the dipstick tube.
The engine dipstick tube has an enlarged cross section, plus a formed extension at the top end where the dipstick is inserted and the approved engine oil evacuation equipment interfaces. The opposite end of the dipstick ends just short of the oil pan bottom, thus engine oil can be extracted via the approved oil evacuation equipment by using the dipstick tube. Additionally, the engine dipstick tube itself is the conduit through which spent engine oil is moved to the oil evacuation equipment.
In addition, service and repair components for existing approved oil evacuation equipment is also available. Note: Because the engine oil dipstick tube is the conduit through which spent engine oil is extracted, inserting tubular probes through the dipstick tube is NOT recommended.
Special Note for M-class: Due to the location of the vehicle frame and suspension components, the draining of engine oil via the engine crankcase oil drain plug is not recommended, since this can lead to engine oil coming in contact and subsequently be damaging to the rubber suspension components. Thus, it is strongly recommended to use the approved oil evacuation equipment contained in the Service Information for this purpose. Index 1. FLACO 2. RAASM 3. BDM Engineering 4.
This approved oil evacuation equipment is to be exclusively used for the evacuation of engine oil, transmission oil, power steering oil, and differential oil only. If the manufacturer does not recommend a specific lubricant, use the following. Cleaning and Flushing It has come to our attention that in numerous instances the cleaning and flushing of hydraulic brake systems are not handled correctly.
Many products are on the market which were neither tested nor approved by us. Use of these products could lead to damage of the brake system. As published in our S. To ensure safe operation and to prevent corrosion, we request that you use only these factory-approved products see also M-B Specifications for Service Products, pages Note: Cleaning of brake system components with alcohol as suggested in S. Dust Shields The automotive aftermarket is offering disc brake dust shields designed to prevent deposits of brake dust on the light alloy wheels.
This is to advise you that the information published in our S. MBNA disapproves the use of such shields for the following reasons: The shields are installed between brake disc and wheel and may affect the ventilation of the brake discs. The resulting buildup of heat in the brake disc and caliper could lead to the formation of vapor in the brake fluid. Since vapor is a gas and thus compressible, this may lead to reduced brake efficiency and possible brake failure.
In addition, some of the installation instructions for the shields contain, in part, recommendations to rework brake calipers by removing material from them if it is found that dust shields scrape against calipers. For safety reasons, such reworking of brake calipers should never be attempted. Dust shields can also cause brake squeal. To remedy any of these issues please proceed with the following. Only perform repair and replacement work on the refrigerant circuit if the SDS refrigerant circuit test was unsuccessful and you have received appropriate instructions in the SDS function test.
Prerequisites: 1. Before parts can be replaced, the exact quantity of the refrigerant in the refrigeration circuit must be determined by evacuating the system. When returning parts be sure to indicate the exact amount of refrigerant in the circuit and any other findings by the technician.
If the filling capacity is not indicated, warranty claims may be rejected. If the fill level of the refrigerant circuit is too low, parts should only be replaced if the torque limiter is broken.
If the fill level of the refrigerant circuit is too low and the torque limiter is damaged, the leak test Test 6 "Leak in refrigeration circuit" must be performed using the "Technology Guide Vehicle Climate Control" located in SDS SDMedia first and then the system must be refilled and checked. Inadequate fill levels may be the cause of the air conditioning shutting down or malfunctioning. Remedy A - Broken Torque Limiter: 1. Ensure the alternator freewheel when applicable is not damaged and that the belt pulley of the refrigerant compressor rotates in the belt drive.
If the alternator freewheel is blocked, replace the alternator freewheel. For refrigerant compressors with a replaceable belt pulley, replace the belt pulley only, otherwise replace the refrigerant compressor. Refer to EPCNet for applicable part number. Remedy B - Blockage in the Refrigeration Circuit 1. Identify through SDS function test "Refrigeration circuit test" that the refrigerant circuit has not been underfilled or overfilled.
Inspect along the AC lines to check for blockage at the points with marked temperature differences. Identify and replace the blocked components in the refrigeration circuit. After ruling out a short circuit in the actuation and ground wiring, replace the refrigerant compressor only.
The segment front edge generates a negative voltage signal. The segment rear edge generates a positive voltage signal. Engine speed is determined by measuring the period d which is equal to one crankshaft revolution. The alternating voltage of the position sensor is passed along the control lead coaxial lead to terminal 7 at the ignition control module. If the control module does not receive a signal from the position sensor, the complete ignition system is inoperative, e.
No TD signal exists if a short to ground is present at the equipment or at the diagnostic connector terminal block terminal TD X Rectify short to ground in the prospective circuit. The following components have a TD connection: Tachometer,CFI control module,fuel pump relay and compressor cutoff control module. Install male connector housing 1, Figure 2 to cut off branch a, Figure 1 of old transmission wiring harness, and connect wires as shown in the table.
Model On the new transmission wiring harness 2 , cut away branch a approximately mm 8 inches from its entry point into the harness and discard. Solder connector sockets part number 06 26 to wire ends of the transmission wiring harness 2.
Front fenders 1. After removing combination switch, remove screw attaching cruise control switch to combination switch and separate switches. It is fitted to the left wheelhouse and is installed with heat conducting paste.
The control unit receives information concerning engine speed crankshaft position , intake manifold vacuum load condition , engine temperature coolant , and full load throttle valve switch. Ignition Map The EZL control unit compares information from these inputs with ignition maps for typical load and speed ranges which are stored in the microcomputer.
The optimal ignition timing for each operating condition is instantaneously determined from the stored maps and the power output stage switches the primary current of the ignition coil between terminals 16 and 31 of the control unit.
Furthermore, a TD engine speed signal is provided to the CIS-E control unit, tachometer, fuel pump relay, and diagnostic socket. During cranking and up to approx. After approx. Various ignition characteristic curves are inhibited in the warm-up range depending on the coolant temperature in order to reach the normal operating temperature as rapidly as possible.
When a full load signal is received from the throttle valve switch the control unit adapts a fixed full load ignition map characteristic.
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