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Can anybody out there help?
My heating works fine while the engine warms up from cold, but when the temp gauge is about half way up the air starts to turn cold. The car does not overheat (tried and tested in London traffic) and normal running temp is about 3/4 on the temp gauge.
 

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The temp on the gauge is normal for driving in the city, although it should drop down to 1/2 after the fan has given the rad a blast of air.

Does the car have manual AC or Automatic Climate Control? If it's manual does the air still run cold even with the temp dial on full?
 

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I would suspect that it could be one of two things or a bit of both,as the head gasket has recently been replaced you could have an air-lock in the system, and/or the thermostat may be playing up,drain the system replace thermostat and refill,making sure that heater control is set to full hot.
 

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Am I right in thinking the temperature control is included in the resistor pack under the bulkhead cover, i.e. the same one which controls fan speed? This "might" be the culprit if there isn't an airlock as Mike describes.

I've been waiting for a replacement resistor pack for over 2 months now. Seems that the Saab parts crisis is affecting some parts for old cars.
 

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Must be a winter thing.

Mothers car was doing this. Well the temp gauge was going up to the red (normally sits at half) but the engine wasn't overheating and all we got was cold air no heat. After about 5 miles or more (as you start to think Oh S**t) it settled down - ended up being a simple air-lock in the cooling system.

Not very techy but there we are for what its worth.
 

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Jason

With regard to your problem getting hold of the resistor pack. Try eurocarparts. I have just bought the resistor pack for the non ac/manual ac from them. I phoned on Thursday had the part on Saturday. Also if it is the full acc pack you need try the partsasap people. I got the pack from them within a few days. Actually it is still sitting in the garage, I need to send it back as it was the wrong part for my model.
 

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Jason

The part number for eurocarparts is 210880010, I found in the cooling section under heater motor. This is the part for non AC or manual AC.

The contact number for the partsasap (I think it is part of South West Saab Specialists) is 0117 9406151. I do not have the part number on the receipt, but if you explain the part they should know what you are looking for.

Gordon
 

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A good way to test for air in system is to feel pipes to/from heater matrix and if they are cold after 5 mins running then there is air in the system.
Another way if you are not flushing or changing coolant is when you drain system use a container and then when you refill, if there is still coolant left in container then you have an airlock.

To fix undo jubilee clip fixing top pipe to heater matrix and gently ease of pipe to release air. Take care as hot water/coolant will eventually escape also beware of ECUs etc in this area. These don't mix well with hot water
Good luck
 

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Originally posted by gordoncooper:
[qb]Jason

The part number for eurocarparts is 210880010, I found in the cooling section under heater motor. This is the part for non AC or manual AC.

The contact number for the partsasap (I think it is part of South West Saab Specialists) is 0117 9406151. I do not have the part number on the receipt, but if you explain the part they should know what you are looking for.

Gordon[/qb][/b]
Cheers Gordon, my car has manual AC so I'm not sure if thats the correct part. I will phone the Brum outlet for ECP and see if they have the part I need in stock.
 

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Jason,

Am I right in thinking that you have a car with a manually controlled fan with a four position switch and the fan only works in the top (fourth) position?

If this is correct and you belive it to be the resistor pack, don't wait (and/or buy it) from Saab or anywhere else for more than a quid. Get along to Maplins or another component supplier and purchase a thermal fuse (approx 211 deg from memory, but don't belive me, get out a magnifying glass and check your own model) for around 50 pence and replace the duff one in your resistor pack by inserting it with a couple of small screw connectors (don't solder it for obvious reasons). I find the insides of the typical 'choclate block' connector cut out from inside the plastic case do the job well.

HTH.

Nick.
 
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