What does the ABC Sport button do?
Each vehicle equipped with ABC has an “ABC Sport” button that allows the driver to adjust the suspension range for different driving style preferences. This feature allows the driver to adjust the suspension to maintain a more level ride in more demanding driving conditions.
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 often should a hydraulic pump be replaced?
There is fluid and filter for ABC hydraulic system that should be replaced periodically and special procedure should be carried out at the time of service, that on most cases extends greatly life of whole system and especially the pump (it is called tandem pump that incorporates power steering pump and high pressure suspension pump in one body).
How do you remove an ABC pump from a Mercedes Benz?
Loosen the hose clamps from the 2 hoses where they go to the power steering reservoir and ABC reservoir, then pull the hoses from them. Remove the front 2 of the three 10mm bolts holding the reservoir assembly in the car, then loosen the 3rd nut that attaches the bracket to the strut tower.
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.
-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.
There is fluid and filter for ABC hydraulic system that should be replaced periodically and special procedure should be carried out at the time of service, that on most cases extends greatly life of whole system and especially the pump (it is called tandem pump that incorporates power steering pump and high pressure suspension pump in one body).
Can a vacuum pump change the ABC fluid?
Yes, but using a vacuum pump will not change all of the ABC fluid. You will be replacing only about 30% of the fluid by sucking out the old fluid and filling with new ABC fluid. Make sure to do this with the engine off.
What to do if your ABC pump is running dry?
Go the parts store for a quart of “Pentosin CHF 11S” fluid and fill to the upper mark before starting the engine. If in fact the pump was run dry, the pump may require priming to get operational again. This is done by pressurizing the reservoir to help the pump get the fluid moving again. Check the underside of the car for any signs of fluid leak.