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Matt
Matt, Mechanical Engineer
Category: Volkswagen
Satisfied Customers: 20592
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Esp light on in passat 2litre manual losing power in gears

Customer Question

esp light on in passat 2litre manual losing power in gears
Submitted: 1 month ago.
Category: Volkswagen
Expert:  Shantal-Mod replied 28 days ago.
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Expert:  Shantal-Mod replied 26 days ago.
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Expert:  Matt replied 25 days ago.

Hello

if the ESP light is on al the time then its possible that a faulty sensor is keeping the car in a traction limited mode all the time

I've known a faulty wheel speed sensor to cause this and ideally if you could plug the car into a scan tool tool to identify which sensor is at fault then thi sis the quickest route

systems 99% of the time its a problem with one of the wheel speed sensors and I'd first check the connections at all four corners first for any signs of corrosion or chafed wiring.

The sensor is located in the wheel hub so you'll have to remove each wheel in turn to inspect them all.

Also check that the toothed wheel that the sensor points to is clean and free of any debris.

you can check each sensor's function by plugging the two output wires into an AC voltmeter and spinning the wheel quite quickly, you should get a voltage signal that increases with rev's.

Its possible that the fault is only a bad connection to one of the wheel sensors.

This may be remedied by removing each wheel in turn and unplugging each sensor and cleaning the contacts with a squirt of electrical contact cleaner. Then refitting.

Expert:  Matt replied 18 days ago.

Hi

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