When did Mercedes start using ABC suspension?
1999
Mercedes Benz installed a special active suspension in their top model cars, starting with the 1st generation ABC systems in 1999 with the C215 CL-Class, W220 S-Class top models S500, S55 and S600 and R230 SL-Class. The hydraulic driven variant of this active suspension is called ABC or Active Body Control.
How much does it cost to replace ABC pump?
-Inconsistent and vague suspension. Mercedes here quoted $7k for the ABC pump, plus $850 to flush the fluid. They also wanted $3k for the pressure accumulators and $2750 for the front left strut. I replaced all the pressure accumulators for around $600 but still got the ABC warning.
How is the ABC pump held in place?
The rear of the pump is held in place with a nut through an engine bracket onto a captive stud in the pump. In order to access this nut, you need to remove the cylinder that the banjo bolts go into from the ABC pump. It is held in place by 2 etorx bolts which are not so easy to access.
How do you replace an ABS pump in a car?
Following this procedure, drain the brake reservoir through the bleeding screw and discard all the old fluid, taking care not to spill any fluid in the engine compartment. Then loosen all the lines running into the ABS system alongside any wiring. Be careful as these connectors tend to be inflexible and will need to be pushed gently out of the way.
What should I do to Prime my ABC pump?
Prepare your air pressurizing kit to prime the ABC pump again. Start the car with a helper while you check for leaks. Put a few bar of air pressure into the ABC tank to prime the pump for 15 seconds or so. Keep an eye on the fluid level and top up as required to maintain the levels.
ABC pump for your car is $2020 and to replace it it takes about 4-5 hours. Repair will also take 4-5 bottles of hydraulic fluid, ABC filter and “rodeo test” to bleed the system. We usually do height calibration at the same time. View answers to similar questions from RepairPal’s community of auto experts and enthusiasts.
What should I do if my ABC pump stops working?
If so, do not start the car again until you have added more fluid and restored normal pump operation. If you attempt to drive the car without adequate fluid, the pump will be destroyed in very quick order (a $2,500 repair), while shedding metal debris into the system that will damage other components as well.
Following this procedure, drain the brake reservoir through the bleeding screw and discard all the old fluid, taking care not to spill any fluid in the engine compartment. Then loosen all the lines running into the ABS system alongside any wiring. Be careful as these connectors tend to be inflexible and will need to be pushed gently out of the way.
The rear of the pump is held in place with a nut through an engine bracket onto a captive stud in the pump. In order to access this nut, you need to remove the cylinder that the banjo bolts go into from the ABC pump. It is held in place by 2 etorx bolts which are not so easy to access.