A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Temp / Climate Problem

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Old May 3, 2001 | 10:07 AM
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Default Temp / Climate Problem

Ok, How do I get the Climate Control system into a manual mode? The outside temp reading on my car has failed, (reads -50.0) and now the A/C won't come on because it thinks it is -50.0 outside, I have tried turning the system to LO but it still just blows outside air. Its going to the dealer next week, and I can live with out A/C but its still nice to have.

Its a 2000 A4
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Old May 3, 2001 | 10:14 AM
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don't you just turn off auto?
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Old May 3, 2001 | 10:16 AM
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I wish it was that easy, the system seem to well integrated for its own good
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Old May 3, 2001 | 10:17 AM
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Default You might be SOL....

From what I understand the ECU won't let the compressor/condensor run when it is colder than ~40 deg. F ... So if the temp. sensor is broken and the ECU thinks it is -50 outside, it isn't going to let the compressor work.
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Old May 3, 2001 | 10:23 AM
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Outside temp sensor can't be that expensive.
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Old May 3, 2001 | 10:27 AM
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Only meant SOL (without A/C) until he gets it in for service.
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Old May 3, 2001 | 10:28 AM
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find the outside sensor and try grounding it. maybe it will default to a A/C limp mode? guessing.
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Old May 3, 2001 | 10:54 AM
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Move to Denver - Temps here are right at freezing now with 5-6 inches of snow on the ground.
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