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The heating is intermittent on my vw passat 1999 1.9 tdi. I think it is a relay but don't know which one (only fuses are listed in the handbook and not relays). When heating is turned on it doesn't necessarily come on - but can burst into life halfway through a journey. I have located the relays behind the fuses on the end of the dash at the drivers side but don't know which one is for the heating/AC fans. The following relays are positioned there: 202, 204, 267 and 370. Can anybody tell me which is for the heater so I can buy a new one. Thanks.

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  • 170 Answers

Probably not, make sure you get all the air out of the cooling system, which is called "bleeding". Too much air and no heat. This link might help...http://www.passatworld.com/forums/42-volkswagen-passat-b5-discussion/276774-timing-belt-cahnge.html

Posted on Apr 29, 2017

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Posted on Jan 02, 2017

  • 225 Answers

SOURCE: I need to know correct location for relays as they are mounted above fuses. 98 jetta gls

Hi - I don't know the answer off hand but there is just a chance you could do a Sherlock Holmes job yourself, because many of the relays have unique pin layouts and cannot fit into the wrong place. The numbers may be misleading - on my Sharan some of the relays have numbers which are sideways or upside down when correctly installed! If you find that one relay will go into more than one socket, or more than one relay will go into one socket then you will need further help, but if there is, say, a five pin relay and only one five pin socket, it's got to be right, hasn't it?
If these suggestions do help you solve the problem, please give my reply a rating to help others judge my knowledge / guessing skills. If they do not, please add a comment with more details so I can try to help you further. Cheers, D
.

Posted on Jul 01, 2008

short shadey
  • 421 Answers

SOURCE: I need to know correct location for relays as they are mounted above fuses. 98 jetta gls

they will only fit in there one or two ways just match em up to there spot on the board, most of them are the same relay anyway -jeff

Posted on Sep 01, 2008

bunnydawg
  • 5158 Answers

SOURCE: need relay location

relay 1 engine compartment
fascia 2 relay 18 (if it is diesel) relay 10 (diesel again) and this could likely be the best candidate relay 4 fuel pump relay/glow plug relay

Now for the fuse box locations ... looking from the front of the car... the engine compartment fuse box is on the left side up near the firewall.
fascia two is the lowest of the two fuse panels on the drivers side under the dash to the right of the steering column (left if it was a right hand drive).

This took about 15 minutes to locate all the possible fuses, be that as it may if i missed it don't hesitate to ask me again.

Robert

Please take a moment to rate this solution thanks

Posted on Feb 17, 2009

ronaldo_ross
  • 1056 Answers

SOURCE: Volkswagen passat 96 AC relay location

You should never connect a 12volt to the compressor solenoid.unless you unplug it first, because on some cars the ac solenoid is driven by an electronic circuit. Semiconductors are very sensitive to excessive current. I once had to repair the computer on a mercedes because the other mechanic did that. Luckily I know how to repair electronic circuits, or they would have bought a 500 dollars computer the little chip that blew only costed a dollar fifty cents at radio shack,.LOL. Anyways back to your problem, Have you checked if there is a leak, and all the refrigerant might have leaked out? This would prevent the compressor from coming on. Along the ac line there is a switch, sometimes by the reciever drier, when the system looses refrigerant the pressure inside drops and that pressure switch disable the compressor. , and the compressor wont come on. This is to protect the compressor, because it will be damaged if you run it without refrigerant. Ac clutch solenoid is usually is not driven by relay, because an ac solenoid don't really take much current to to kick in, unless of course it is shorted. It would either be directly from the inside switch usually in series with the fan control or driven by a small transistor in a circuit, and the electronic circuit is driven by the ac controls inside. I think the problem with your ac is that it has no refrigerant thats why the compressor wont come on.

Posted on Jun 27, 2009

  • 736 Answers

SOURCE: I am trying to locate the relay panel on my 99 vw

open the drivers door .. on the end of the dash (normally covered by the door) is a panel .. pop off that panel and the fuses are there .. of course fix the problem that caused the wires to burn then locate the fuse .. not easy since they give you a really cryptic guide to the fuses .. of course you should be able to see one thats blown .. if you cant read the gliphs then call a dealer to find out which fuse is which .. the relays are also behind the fuses .. again not marked except by big numbers stamped on each but no guide .. there are two fans .. the driver side is the cooling fan ..the passenger side is the air conditioner .. that is operated by a pressure switch in front of the condenser (front of car under gril on passenger side) .. .. likely a coolant temp switch operates the cooling fan .. actually i can check that if you need more info ..

Posted on Jul 22, 2009

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