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2002 Golf IV 1.6 Comfortline Electrical Problem

When i purchased the car i replaced the battery because the car had been standing for a year and the battery was dead. Just before being parked off for a year in a basement the car had its 120 000km major service at vw rosebank.

If the car's parked off for too long or if i turn the ignition off and put on the hazards or play the radio or leave the lights on for 5 minutes or more the car swings really slow and the clock (time) resets obviously meaning the battery's almost dead. If i drive for a while and switch of the ignition and start again its starts as it should. This led me to believe that the alternator is not charging the battery properly maybe because of brushes or something so i had the battery and alternator checked but the battery shop said both are fine.
So now i'm really confused as too what the problem might be.

Any help would be appreciated

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Posted on Jan 02, 2017

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SOURCE: starting problems golf mk4 1.6 petrol

There is a part between the air intake manifold and the air box on your engine, it's usually black on a golf, will look like a 15cm tube around 80-90mm in diameter with a plugged wire leading into it, this is your MAF sensor or MASS AIR FLOW sensor and if dirty / faulty can cause an incorrect temp reading from the air intake and cause rough engine starting, this is a very common problem on mk4 golfs... the part is apparently cleanable, with isoprop alcohol, or I assume white spirit. the actual sensor needs to be removed from its housing for cleaning, and as always treat carefully... the part replacement, depending on where you go can be around $50 - $100 used or even new.... part number off the existing one on your car, try ebay as you can do well for price :) could be fouled spark plugs from rich fuel mix on bad airtemp sensor, could be a million things but the MAF sensor is one of the golden oldies I'd be checking first :) Goodluck, Chas

Posted on Jun 08, 2009

  • 221 Answers

SOURCE: 74 vw super beetle. died while driving on

check the main fuses, those big ones, if this won't help take a look at the Groud wire. Make sure The Engine and vehicle Body is Properly connected to Battery GND (-12V).

Please update me about your Progress

Good Luck

Posted on Jun 22, 2009

  • 580 Answers

SOURCE: My friend's VW golf turn lights and hazard lights do not work

Replace the flasher module this should resolve the turn and hazard light issue. If the stop lamps not working after replacing flasher check brake light switch

Posted on Jul 16, 2009

  • 119 Answers

SOURCE: my 2002 vw passat esp light comes on when you turn the engine on

Hi Amanda
I have come up against this problem a few times before.
If the ABS. light is NOT on, and its the ESP light only that is on...your problem may well be a faulty Yaw sensor. This unit is fitted to the floor panel under the rear the centre. Another problem (although not all that common) is a faulty ESP switch. You should have an OBD code reading done to make sure. If a new YAW sensor must be fitted, the car must be driven with a full steering lock in both directions (left and right) at a speed over 20 Km per hour after fitting. If this is not done the light will remain on, even though it will now drive ok.
As for the price of this unit...Here in Ireland it costs around 140 euro. Hopefully its cheaper where you are. So better to have the codes read first.
I hope this is of some help to you.
Good luck with it

Posted on Aug 19, 2009

Testimonial: "thanks"

  • 119 Answers

SOURCE: Replacing of the cam belt / timing belt, rollers

Yes. Most defiantly replace the water pump. If the pump bearing should collapse it will break the new timing belt and do a lot of damage to the valves and cylinder head.
Good Luck with it

Posted on Sep 11, 2009

Testimonial: "Thanks for the reply. I will do so and replace all V-belts with the cam belt and the water pump replacement. "

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