I have a 2005 VW passat. Its heater pressure and light ray improve when I press the gas pedal. What could be the problem? Its electrical system or something else?
3 Answers
I agree. Might want to also have battery tested and check battery connection to. But probably an alternator or alternator belt issue.
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yep sounds like they nailed her on the head on this one.
Christopher answered 9 years ago
The heater output seems normal for it to improve with engine speed.