New Member, needing help with limp mode /abs/eps

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Megz92

New Member
Joined
Apr 16, 2021
Messages
10
Location
Scotland
Car
2006 W221 S-Class S320 CDi
Hoping someone can help me please!

I have a 2006 S-Class S320 CDI (W221).
Bought it a few weeks ago and up until now the car has been sitting since its last MOT in July.

When we got the car there is a message on the dash saying ABS/ESP inoperative. Run Flat Indicator inoperative. We don't have the owners manual for the car so can't consult it as it says.

Partner plugged his diagnostic into the car and it came up with a faulty wheel speed sensor passenger rear. We bought a new sensor and fitted it, reset the fault but fault still on the dash. It'll turn off until the car moves a few feet and it'll come on again.

The car went into limp mode one day coming out of the fuel station. Managed to get off the road and phone partner but of course by the time he arrived to save the day it was fine again and no faults found on the car. Not had it do this again for a couple of weeks until today again.

While driving the dash came up with the manual/electronic handbrake and the car wouldn't change gear. Restarted the car mid driving as I was in peak traffic and it went away but then went into limlp mode. Again, checked diagnostic, no faults other than the esp/abs/electronic break system. When I started the car again the steering went heavy and went back into limp mode. Stopped the car again and turned it off and it sounded like it was overheating but temperature was sitting just over 80degrees. At one point while driving on the dual carriageway the glow plug light came on but soon went off again.

Anyone have any ideas as to what's going on?
 
Welcome :)

I don't know enough to help you unfortunately, but I'm sure somebody soon will.
 
Welcome!

I would check the battery to make sure it is good and fully charged, these cars are quite sensitive to the battery voltage (I have seen all sorts of errors and behaviors when the battery voltage is low). Once you have confirmed the battery is all good (overnight charge etc) go for drive and see how it behaves. The next step would be to get the car scanned on an MB SDS scanner which will provide in depth diagnostics information (What scanner is your partner using?).
 

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