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The BMW Range
7 Series
Just bought E38 728i
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<blockquote data-quote="ssmann" data-source="post: 401108" data-attributes="member: 18956"><p>Guys,</p><p></p><p>Fixed the problem @ Naidu's.</p><p></p><p>Problem: A/C blowing hot air. Gas fine, compressor fine, cooling coil fine</p><p></p><p>Diagnosis: Wiring/relay/fuse problem</p><p></p><p>Repair: After testing fuses = all ok. Test relays = all ok. Open wiring under dashboard. Found a sensor (a/c temperature sensor) was faulty. It is a metal rod about 8cm long, looks like a ballpen refill. It had a crack, exposing the coil. Replaced with 2nd hand part. Problem fixed.</p><p></p><p>How long: Took Naidu 1 whole day from 9am, return at 5pm. Why = he had tonnes of cars with big problems!!!</p><p></p><p>Cost = RM70 for relay, RM70 for labour.</p><p></p><p>A/c now is cold as before. Hope it lasts!</p><p></p><p>Thanks for all the help and suggestions.</p><p></p><p>Rgds - S</p></blockquote><p></p>
[QUOTE="ssmann, post: 401108, member: 18956"] Guys, Fixed the problem @ Naidu's. Problem: A/C blowing hot air. Gas fine, compressor fine, cooling coil fine Diagnosis: Wiring/relay/fuse problem Repair: After testing fuses = all ok. Test relays = all ok. Open wiring under dashboard. Found a sensor (a/c temperature sensor) was faulty. It is a metal rod about 8cm long, looks like a ballpen refill. It had a crack, exposing the coil. Replaced with 2nd hand part. Problem fixed. How long: Took Naidu 1 whole day from 9am, return at 5pm. Why = he had tonnes of cars with big problems!!! Cost = RM70 for relay, RM70 for labour. A/c now is cold as before. Hope it lasts! Thanks for all the help and suggestions. Rgds - S [/QUOTE]
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