Mercedes Benz S 550 4MATIC Technical Problem #LI42-45_P-0475422 Date: 091028
Keyless Start System - Engine No Start With Start Button
A START ABORT CAN OCCUR WHEN STARTING THE VEHICLE WITH KEYLESS GO START
Topic number LI42.45-P-047542
Version 2
Design group 42.45 Electronic Stability Program (ESP), Stability Control (SR)
Date 10-28-2009
Validity Model 221 with Keyless-Go (code 889) and Distronic
Plus (code 233) and modification year 09/01 (code 800)
Reason for change Remedy added.
Reason for block
Complaint:
After the vehicle has been idle for an extended period, a start abort may occur or it may not be possible to start the engine when starting the engine
via Keyless Go.
Note:
The engine can be started via the key in the EZS.
Cause:
Due to an extended vehicle idle period, when the engine is started via the Keyless Go function a voltage dip (depending on the charge level of the
vehicle battery) can occur at the ESP control unit.
As a result, the Keyless Go control unit does not receive the enable signal because the "Driver braking" signal cannot be sent via the CAN databus
by the ESP control unit.
Remedy:
Flash ESP control unit with the current valid software (A221 902 82 01) via the DAS diagnostic unit.
Note:
This software is available as of DAS-DVD 11/2009!
Symptoms
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968) Page 287
Validity
Keyless Start System - Engine No Start With Start Button
A START ABORT CAN OCCUR WHEN STARTING THE VEHICLE WITH KEYLESS GO START
Topic number LI42.45-P-047542
Version 2
Design group 42.45 Electronic Stability Program (ESP), Stability Control (SR)
Date 10-28-2009
Validity Model 221 with Keyless-Go (code 889) and Distronic
Plus (code 233) and modification year 09/01 (code 800)
Reason for change Remedy added.
Reason for block
Complaint:
After the vehicle has been idle for an extended period, a start abort may occur or it may not be possible to start the engine when starting the engine
via Keyless Go.
Note:
The engine can be started via the key in the EZS.
Cause:
Due to an extended vehicle idle period, when the engine is started via the Keyless Go function a voltage dip (depending on the charge level of the
vehicle battery) can occur at the ESP control unit.
As a result, the Keyless Go control unit does not receive the enable signal because the "Driver braking" signal cannot be sent via the CAN databus
by the ESP control unit.
Remedy:
Flash ESP control unit with the current valid software (A221 902 82 01) via the DAS diagnostic unit.
Note:
This software is available as of DAS-DVD 11/2009!
Symptoms
2010 Mercedes Benz S 550 4MATIC (221.186) V8-5.5L (273.968) Page 287
Validity
