1990 300TE W124 - Continuous Hot air, Rough Idling, No Cruise Control and ABS light! - PeachParts Mercedes-Benz Forum

Patrick_NZ · #1 11-15-2008, 08:58 PM

1990 300TE W124 - Continuous Hot air, Rough Idling, No Cruise Control and ABS light!

I’m starting to accumulate a number of non-fatal issues with my right-hand-drive W124 wagon (212,000 kms) and need some help! I’ve recently had a water pump change and in the process of repairing the garage disconnected one of the AirCon hoses and discharged the system. After this ‘repair’ some things have started to go wrong…. The AirCon has not yet been regassed.

1. Firstly, ALL the vents now blow very hot air only, regardless of the dial settings. Obviously I don’t expect the aircon to work but I also don’t expect continuous hot air.

2. The battery discharged itself completely when the inside light was left on and now the ABS light comes on continuously. According to my Haynes manual, the ABS turns itself off when sensing low charge from the battery. I have now replaced the battery. The local Mercedes garage says the ABS should now automatically come on. It does not. They’ve also invited me down for an inspection and have suggested it may cost $1000’s to fix!

3. I’ve now noticed that the cruise control no longer works.

4. Also, that the auto-grab lock for the boot (trunk) rear door no longer comes on!

5. Not long after the water pump was replaced, the car started to idle roughly. I’ve changed the spark plugs to no avail.

Apart from never, ever using the repair garage again, I’m not really sure where to start. Not sure if any of these things are linked, but I love this car and want to return it to its former trouble free glory. Any and all help is gratefully appreciated.
Cheers
Patrick