ABC warning need help asap
Thread Starter
MBWorld Fanatic!
Joined: Oct 2009
Posts: 1,924
Likes: 38
cl600
ABC warning need help asap
abc light came on sunday. next day it was off. ran the car about 20 miles, shut her off. came back about 40 minutes later, turned car on and abc warning again. drove home and checked engine compartment. noticed abc resevoir had over flowed slightly. pulled up dipstick and fluid was almost to top of reservoir with engine just shut off. brought it to dealer and they couldn't find a code. they replaced the abc pump 2 months ago and refilled the system. no problem until yesterday. 2 months after installation. i never added fluid and the reservoir never overflowed before yesterday. i assume the fluid is heating up more than in the past 2 months, or there is some type of restriction somewhere. the car rides fine and all tires are at correct height. what would cause the reservoir to overflow at this point and the light to go on? any suggestions? car is at dealer now and i'd like to give them some more input.
thanks in advance.
p.s. it a 2004 cl600 with 78000 miles.
thanks in advance.
p.s. it a 2004 cl600 with 78000 miles.
Last edited by biker349; Mar 29, 2011 at 05:18 PM.
Junior Member
Joined: Feb 2011
Posts: 39
Likes: 0
cl500 2001
System burp?
abc light came on sunday. next day it was off. ran the car about 20 miles, shut her off. came back about 40 minutes later, turned car on and abc warning again. drove home and checked engine compartment. noticed abc resevoir had over flowed slightly. pulled up dipstick and fluid was almost to top of reservoir with engine just shut off. brought it to dealer and they couldn't find a code. they replaced the abc pump 2 months ago and refilled the system. no problem until yesterday. 2 months after installation. i never added fluid and the reservoir never overflowed before yesterday. i assume the fluid is heating up more than in the past 2 months, or there is some type of restriction somewhere. the car rides fine and all tires are at correct height. what would cause the reservoir to overflow at this point and the light to go on? any suggestions? car is at dealer now and i'd like to give them some more input.
thanks in advance.
p.s. it a 2004 cl600 with 78000 miles.
thanks in advance.
p.s. it a 2004 cl600 with 78000 miles.
Thread Starter
MBWorld Fanatic!
Joined: Oct 2009
Posts: 1,924
Likes: 38
cl600
hi, got car back wed. they couldn't find a fault code, but did remove excess fluid. they said they could not duplicate the problem and the abc light never came on even after driving 30 minutes. i asked about a possible valve blockage, or restiction and the tech said that definitely would throw a code. i also asked if somehow the fluid was over heating and he dimissed that as a problem. i'm sure they rodeod it, but if the problem comes back i will bring it back and ask. hopefully removing the excess fluid solved the problem, but i don't understand why that would take 2 months before it showed up as a warning light. in any event i hope the problem is solved. if it isn't i may ask for a different tech to look at it. on the good side, they didn't charge me and provided a loaner. any other insight would be greatly appreciated. i'll keep you updated.
thanks for input.
thanks for input.
Thread Starter
MBWorld Fanatic!
Joined: Oct 2009
Posts: 1,924
Likes: 38
cl600
it's been about a week and no abc warning light yet (crossing fingers, knock on wood). it appears so far that the excess fluid caused the warning light. since the tech lowered the fluid it doesn't throw any codes (again, crossing fingers, knock on wood).
Junior Member
Joined: Jan 2011
Posts: 22
Likes: 0
Previous: R129 1995, W215 2001, Current: W204, Another W215
had a similar problem with 2003 CL55, never been able to figure out the problem, mechanic says there's a very tiny little drop of leak from the driver side rear strut, but it has nothing to do with the overflow, the car might run for a 100 mile without showing any symptom ... confusing to say the least
