Lubrication, checking the mobility and condition of the articulated joints of the throttle lever drive
Caution! Avoid getting grease on the plastic drive hinges!
Throttle linkage design |
Location of the gas pedal position sensor (B37) |
1. The design of the throttle lever drive is shown in the illustrations above, if necessary, remove the air cleaner (see Section Removal and installation air intake tract components).
2. Lubricate the drive mechanism articulated joints, the ball assemblies should be separated, filled with grease, then re-joined - do not forget about the spherical support on the gas pedal position sensor (B37).
3. Thoroughly lubricate all bearing surfaces of rods and levers, as well as exposed areas of hinges and cables.
4. Slowly press the gas pedal all the way down, then release it - if you find signs of play or jamming, replace the throttle cable (see below).
Checking and adjusting the throttle actuator
1 - Drive cable; 2 - Position sensor lever; 3 - Adjusting screw; 4 - Kickdown mode activation switch sensor; 5 - Gas pedal; A - The damper is completely closed; a - Damper stop; B - The damper is completely closed; b - Damper stop
1. Check the freedom of movement and general condition of the lever (2) of the position sensor (TPS) and the drive cable (1).
2. Start the engine at idle speed, - the TPS lever (2) should press against the stop (a) of the closed position of the valve (the gas pedal (5) is released). If necessary, adjust the position of the lever by turning the adjusting screw (3), completely eliminating the existing play.
3. Connect the STAR DIAGNOSIS reader and clear the memory of the on-board diagnostic system module (see Chapter Engine electrical systems).
4. Press the gas pedal (5) until it stops against the kickdown mode activation switch (4) (do not activate the mode), and using the adjusting screw (3) ensure that the TPS lever is pressed against the stop (b).
5. Clear the memory of the on-board diagnostic system module again (see Chapter Engine electrical systems).
6. Visually check that the throttle valve travels fully, lubricate the exposed sections of the drive cable with anti-corrosion grease (001 989 37 51 10).
Removal and installation the throttle cable
Throttle Cable Installation Details (all models)
10 - Fixed lever; 30 - Drive cable; 30/4 - Plastic fasteners; 30/6 - Rubber bushing; 33 - Pedal assembly lever; 35 - Return spring
(Original can be found on the website: «mercedesman»)
1. Disconnect the drive cable (30) from the spherical bearing head.
2. Press the plastic clips (30/4) together and pull the fixed lever (10) together with the drive cable (30) outward.
3. Remove the cover on the left under the instrument panel.
4. Push the cable from the passenger compartment into the engine compartment - try to prevent the rubber bushing (30/6) from falling out.
5. Remove the cable assembly (30) from the engine compartment.
6. Installation is carried out in reverse order.
7. Finally, adjust the drive (see above) and lubricate the exposed areas of the cable assembly with anti-corrosion grease (001 989 37 51 10).
Removal and installation the gas pedal position sensor
Gas pedal travel sensor installation details (all models)
25/3 - Lock washer; 25/4 - Transfer lever with integrated remote clutch; 25/5 - Fixed Lever; 31/9 - Return spring; R25/2 - Setpoint sensor
1. Disconnect the return spring (31/9).
2. Chisel the lock washer (25/3).
3. Pull back the transmission lever with the built-in remote clutch (25/4), - do not disconnect the throttle cable
4. Disconnect the electrical connector.
5. Unbolt the gas pedal position sensor (R25/2) from the fixed lever (25/5).
6. Installation is carried out in the reverse order - make sure that the lock washer is seated correctly. Check the correct operation of the drive, if necessary, make the appropriate adjustment (see above).
Removal and installation the gas pedal and its lever
Pedal
Gas pedal installation details (all models)
1 - Gas pedal; 2 - Pedal rod; 3 - Sample; 4 - Cam; 24/3 - Fixer
1. Remove the retainer (24/3).
2. Disconnect the lower end of the gas pedal (1).
3. Turn the pedal (1) to the left on the rod (2) so that the notch (3) falls on the cam (4) of the rod (2).
4. Remove the pedal by pushing it back and separating it from the rod.
5. Installation is carried out in reverse order.
Pedal lever
Gas pedal lever installation details (all models)
1 - Lid; 2 - Gas pedal; 3 - Spring; 4 - Bolts; 5, 9 - Retaining rings; 6 - Pivot support; 7 - Pedal lever; 8 - Locking pin
1. Remove the cover (1) on the left under the instrument panel.
2. Remove the pedal assembly (2) (see above).
3. Remove the front section of carpet in the driver's footwell.
4. Remove the spring (3).
5. Unscrew the bolts (4) securing the swivel support (6) to the engine compartment bulkhead.
6. Remove the retaining ring (5).
7. Remove the pivot support (6) together with the pedal lever (7).
8. Remove the locking pin (8) and separate the support (6) from the lever (7).
9. Installation is carried out in the reverse order - make sure that the pin (8) enters the receiving socket in the engine compartment bulkhead.