Question about 2005 Mercedes-Benz Mercedes Benz CL600
1994 Mercedes 600 L . 90,000 ks Two limp mode probs. 1/ Rev counter dies and car gets weak. 2/ ASR light comes on at a different time and car gets very weak. Hard accelleration can cure problem one. Stopping engine cures problem 2. Both probs worse in damp conditions, at any car temperature. Thanks for reading this, Bill in New Zealand.
Model years 93 and 94 have the L.H. type fuel injection system. There is also e.z.l.(ignition),a.s.r.(acceleration slip regulation-traction)i.s.c.-c.c.-e.a.(idle speed control,cruise control and electronic acuater),d.m.(diagnostic mod.)and the base module. With a v-12 there is 2 of everything exept base and d.m.. the d.m. mod. overlooks the entire system and the base supplies voltage to the computers. This system is complicated and difficult to diag. Most likley one of your electronic acuaters is faulty. That is your throttle motor. These era vehicles have wire harness issues. Have the car ran for codes starting with the d.m.. at least this vehicle will store faults-the light does not have to be on to read the fault. More than likley you will find an e.a. code. You can have these motors rebuilt for about 1/4 the cost of a new one. Also never attempt to raise idle at one of the actuaters because if they are not both moved at the same time you will lose throttle synchronization and have to have the memmory cleared and resynch. motors. It will cause the exact symptoms like you described-also when the pigtail harness wires short and the modules lose the throttle synch. Good luck
Posted on Jul 28, 2009
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Posted on Jan 02, 2017
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