346 Jump starting
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Proceed as follows:
1. Position the vehicle with the charged battery so that 
the jumper cables will reach, but never let the 
vehicles touch. Make sure the jumper cables do not 
have loose or missing insulation.
2. On both vehicles:
•Turn off engine and all lights and accessories, 
except hazard warning flashers or work lights.
•Apply parking brake and shift selector lever to 
position “P” (manual transmission to Neutral).
Important!
3. Clamp one end of the first jumper cable to the 
positive (+) under hood terminal of the discharged 
battery and the other end to the positive (+) terminal 
of the charged battery. Make sure the cable clamps 
do not touch any other metal parts.
4. Clamp one end of the second jumper cable to the 
grounded negative (–) terminal of the charged 
battery and the final connection to the negative (–) 
under hood terminal of the disabled vehicle.Important!
5. Start engine of the vehicle with the charged battery 
and run at high idle. Make sure the cables are not 
on or near pulleys, fans, or other parts that move 
when the engine is started. Allow the discharged 
battery to charge for a few minutes. Start engine of 
the disabled vehicle in the usual manner.
6. After the engine has started, remove jumper cables 
by exactly reversing the above installation 
sequence, starting with the last connection made 
first. When removing each clamp, make sure that it 
does not touch any other metal while the other end 
is still attached.
Note:
If engine does not run after several unsuccessful 
starting attempts, have it checked at the nearest 
authorized Mercedes-Benz Center.
Excessive unburned fuel may damage the catalytic 
converter.
OM_203.book  Seite 346  Donnerstag, 31. Mai 2001  11:57 11 
357 Electronic key
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Changing batteries in the electronic key
1Transmit buttons
2Lamp for battery check and function control
Checking batteries
If one of the transmit buttons (1) is pressed, the battery 
check lamp (2) lights up briefly – indicating that the 
batteries are in order.
Change batteries if the battery check lamp (2) does not 
light up briefly.Changing batteries
Move locking tab (3) in direction of right arrow and 
remove mechanical key (4, left arrow).
P 80.20-2201-26
1
2
P 80.35-2029-26
4
3
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