You’re only seeing the surface.

Our most active car forums and technical guides are reserved for registered users.

Sign up here to get total access and start sharing your own ride.

Problem with the new glow plugs on W211 OM642.

The go-to spot for all non-technical car talk. Whether you’re discussing the latest EV tech or classic steel, park up and join the conversation.
GURU4U2BUY
Posts: 38
Joined: Mon Feb 02, 2026 8:40 pm

It would be possible to check the cold relay's voltage output.
Maybe a poor batch of light plugs came out, or something is blowing them.
Dino_Cars
Posts: 38
Joined: Mon Feb 02, 2026 9:15 pm

The Beru relay station
Post Reply