matslion38

Sprinter diesel preheating lamp issue

I'm having a problem with my 2002 Mercedes Sprinter diesel car. It only has 61214 km on the clock. The preheating lamp doesn't switch off, and there's an error stored in the error memory. I suspect it's a glow plug failure. Has anyone experienced similar issues? Rough idle and slight engine misfire are also present when starting. I'm expecting a repair cost of around 440€, is this reasonable? The check engine light is also on now.

4 comment(s)

Whoa, sounds frustrating! I had a similar issue with my Sprinter (diesel, too). The glow plug thing drove me nuts! Check engine light was on, and it felt like the whole van was shaking on startup. Did you notice any difference in how it runs when it's warm?

Yeah, it's definitely frustrating. When the engine is warm, the rough idle isn't quite as bad, but still noticeable. Did you have any engine misfire too? How did you solve the glow plug problem?

Okay, mine improved when warm too but the misfire was always there a little. Honestly, I just took it to a workshop. Glow plugs can be a pain to get to, and I didn't want to mess anything up further. They confirmed it was the glow plugs, replaced them, and the problem went away.

Thanks, I appreciate the info. Sounds like a trip to the workshop is inevitable. I'll get the glow plugs replaced. Just got a quote and you were right, they confirmed it was the glow plugs. The total cost was indeed around 440€. Thanks again for your help!

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