Poor Fuel Economy Issue
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Discussion

motorheadman

Original Poster:

108 posts

207 months

Wednesday 7th January 2015
quotequote all
Morning all,

I've got a 2002 Golf Mk4 1.9 GT TDi (130).

Can a Coolant temperature sensor and a thermostat affect fuel economy if they’re a bit iffy?
Anyone replaced these and seen their economy drop 15% - 20%?

Cheers,

MHM