What is a Mercedes ABC pump?
Active Body Control, or ABC, is the Mercedes-Benz brand name used to describe hydraulic fully active suspension, that allows control of the vehicle body motions and therefore virtually eliminates body roll in many driving situations including cornering, accelerating, and braking.
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.
Where is the ABC pump located on a Mercedes Benz?
To access the ABC pump bolt, use a short extension beneath the bracket pointing towards the front of the car. To access the engine block bolt, best access is from beneath, between the AC unit and the engine.
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.
What do you need to remove ABC pump?
Disconnect the electrical connector from the ABC pump. Remove the 2 etorx bolts on the front of the ABC pump. You will need to move the belt tensioner using the breaker bar to access one of the bolts. The rear of the pump is held in place with a nut through an engine bracket onto a captive stud in the pump.
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.
To access the ABC pump bolt, use a short extension beneath the bracket pointing towards the front of the car. To access the engine block bolt, best access is from beneath, between the AC unit and the engine.
How do you check Mercedes ABC suspension fluid?
No special tools are required to check Mercedes ABC fluid level. All you will need is a clean rag and make sure to use gloves. Turn off the engine and locate the ABC reservoir in the engine bay. Remove the dipstick.