ovp relay

  1. D

    Mercedes 190 1989 2.0E Rough Idle and bad cold start

    Hello I've been trying to fix this for a year now and I've spent a lot of time searching and trying different things but none have helped so I figured I'd make a thread to get some help. It seems like the colder it is outside the harder it is to start it, it starts but I have to pump the gas to...
  2. W

    1993 500SL - Litany of symptoms - All to do with OVP Relay?

    Hi all, I have a 1992 build (reg '93) R129 500SL (Jap import if that's relevant?) and it has recently acquired a number of irritating symptoms and issues that I would very much appreciate your advice on. I have searched through the forums as best I can and many of the symptoms point to the...
  3. J

    W124 E280 Auto Estate (facelift): OVP relay

    I'd been experiencing a mixture between on, off and intermittent on my ABS warning lamp over the last few weeks. Initially I thought this was down to sensor issues or the front callipers. After changing out the front O/S calliper, though, and all 4 discs, the fault persisted. There was no...
  4. M

    '99 C CLass W202 Engine Shuts Off Whilst Driving And Won't Restart

    I'm currently experiencing a problem with my '99 C Class W202 The engine shuts down completely whilst I'm driving. I bring the car to a stop at the side of the road and I have to wait sometimes 20 minutes, sometimes an hour and a half before the car will start again. I've owned the car since...


GAD was founded in 2009 where we developed bespoke ECU Remapping software for motorsport clients, moving forward, we have extended to road vehicles for both performance and economy,
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