Quote:
Originally Posted by garagelogician
This is usually the case. Glow plugs are just resistive heating elements and are not prone to failure. My VW TDI is 17 years old with almost 300k miles and it still has the original glow plugs. Any glow plug issue I've ever had is for the harness or associated electronics.
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I had one go bad on mine. When I bought it, #1 had been replaced due to a code. Code persisted, so I replaced the module. Before replacing the module I was getting codes for #1 and #6 (If I recall correctly). After replacing the module, #6 persisted. So I replaced it and now all is fine.
Replacing all 6 seems excessive to me. Especially with how easily the intake comes off.
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2009 xDrive35D
Comfort seats, Tech, Premium, Cold Weather, Sport w/ Adaptive Drive, Extended Nappa Leather
Deleted & Stg 2+ Tune for over 115k miles
227k on the clock
Being replaced by a 2016 X5d