looked at ovp relay and listened for hissing on start up of mercedes 560 SEL and nothing any other suggestions as to why it will sound perfect just not turn completely on
chassis mounted and sometime kick panel depending on model,having its own fuse on itself handles the first few minutes of engine warmup. all cold operating sensors are protected , a good device but a pain when acting up! replace it if in doubt ,a pin test would be in order to a real technician 30 is b+12,, 87 is lower to control system
Search Mercedes-Benz 560-Class Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Mercedes-Benz 560-Class Experts