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ACC temperature distribution

987 Views 14 Replies 6 Participants Last post by  mawal
ACC system on Auto, say 19oC. Car started cool air from vents all around, 5 minutes later fan power goes down. Another 15 minutes and fan power going up! Still cold air, this time vents to rear passengers blowing hot, very hot air :confused: .

Second problem is say a humid day. ACC on auto keeps windscreen clear. some time later windscreen starts to mist up. Switch ACC off, and then back on again screen clears. repeat every 5 minutes on a very humid day :confused: . Had several software updates and still no resolve.

Not happy any pointers would help as just bee serviced today and told oil leaks around head gasket and timing chain casing. Garage want £1450 incl. VAT :evil: !! Garage advisd that as car a 1999 model and presents itself quite well with the leather etc and is clean I take it elsewhere and trade in. Are they right? Do I call it quits before I spend money?

The £1450 is for the head gasket, timing chain (due at next service anyway) and 6 hours labour and include 10% discount.
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Has the head gasket definately gone? Are you having overheating problems? Is it using water/oil? Is there a water/oil mix in the oil filler spout (usually looks like mayo). I'm just thinking if a head retorque would sort the problem. Re the ACC problem, have you had the system regassed? Are you getting any fault codes with a diagnostic?
Does it only do this on AUTO function, or if you select all settings manually does it behave itself?
I tend to select my ACC settings all the time and only change them according to the time of year. You could have a problem with the mixed air sensor under the dash though.

Mawal, have we established you didn't need a head gasket just the head retorque, or is the jury still out? :roll:
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