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      11-10-2011, 03:49 AM   #8
United Kingdom

Drives: E91 335d.
Join Date: Sep 2010
Location: Shropshire, UK

Posts: 953
iTrader: (1)

Originally Posted by moar View Post
Are you sure they aren't on the key?

Spark plugs on my car aren't on the CBS but they are a servicable item, they are done every 3 oil changes which works around every 60k.

I imagine the glowplugs are the same ...
Glowplugs are definitely not a service item, and don't have a "useful life". They should last for as long as the car - after all, they are only used on start-up, unlike spark plugs which spark (and therefore erode) all the time.

I'd go with JonnySi's diagnosis