Re: [MBZ] Fw: Fw: Need AC help on 86 SDL
You lead a charmed life, indeed! I HOPE the KLIMA is your problem. It was NEVER a problem on any of my cars EVER. Marshall -- Marshall Booth (who doesn't respond to unsigned questions) der Dieseling Doktor [EMAIL PROTECTED] '87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 190D 2.2 229Kmi (retired) ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Fw: Fw: Need AC help on 86 SDL
Harry Watkins wrote: - Original Message - From: Harry Watkins [EMAIL PROTECTED] To: Marshall Booth [EMAIL PROTECTED] Sent: Thursday, July 13, 2006 10:03 PM Subject: Re: [MBZ] Fw: Need AC help on 86 SDL Thanks Marshall I started in the manual where it said clutch does not engage. First was lo pres sw (S31), then voltage to KLIMA(N6), then control voltage for comp from S31 to N6, then the clutch, then voltage and resistance for the RPM sensor and RPM signal from EDS. When that passed the FSM said replace N6. BTW, when I did the clutch and clutch wiring test, the AC engaged and started cooling the car, I shut if off while it was still operating. If you jump pins 5 and 7 of the KLIMA socket and the compressor clutch engages, then the compressor and clutch are FINE. If it cools while th3 pins are jumped, then the refrigerant system is charged and is working. That leaves the serpentine belt saving circuit. That includes the pressure, temperature, engine and compressor speed sensors and the KLIMA relay that integrates the information and turns the clutch on and off. Each of the elements must be tested. Marshall -- Marshall Booth (who doesn't respond to unsigned questions) der Dieseling Doktor [EMAIL PROTECTED] '87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 190D 2.2 229Kmi (retired)
[MBZ] Fw: Fw: Need AC help on 86 SDL
- Original Message - From: Harry Watkins [EMAIL PROTECTED] To: Marshall Booth [EMAIL PROTECTED] Sent: Thursday, July 13, 2006 10:03 PM Subject: Re: [MBZ] Fw: Need AC help on 86 SDL Thanks Marshall I started in the manual where it said clutch does not engage. First was lo pres sw (S31), then voltage to KLIMA(N6), then control voltage for comp from S31 to N6, then the clutch, then voltage and resistance for the RPM sensor and RPM signal from EDS. When that passed the FSM said replace N6. BTW, when I did the clutch and clutch wiring test, the AC engaged and started cooling the car, I shut if off while it was still operating. I have my fingers crossed because I have failed to find a source for what the normal hi and lo pressure should be. I have a request for that information on three websites and still looking. I suspect mine is overcharged but have no idea what it should be. Any help on that from your files? Thanks Harry - Original Message - From: Marshall Booth [EMAIL PROTECTED] To: Harry Watkins [EMAIL PROTECTED]; Mercedes Discussion List mercedes@okiebenz.com Sent: Thursday, July 13, 2006 9:34 PM Subject: Re: [MBZ] Fw: Need AC help on 86 SDL Harry Watkins wrote: Thanks Make, that makes me feel better because it means I'll be replacing a part that Cathey said could cause my problem. We should know tomorrow. Based on MY calculations, the KLIMA relay is the problem less than 10% of the time - but it's easy to replace!! There are about 11 other potential causes. Marshall -- Marshall Booth (who doesn't respond to unsigned questions) der Dieseling Doktor [EMAIL PROTECTED] '87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 190D 2.2 229Kmi (retired)
Re: [MBZ] Fw: Fw: Need AC help on 86 SDL
I have my fingers crossed because I have failed to find a source for what the normal hi and lo pressure should be. I have a request for that information on three websites and still looking. I suspect mine is overcharged but have no idea what it should be. With R134a pressures are higher than with R12. But if it's much over 300 PSI on the high side or 40 on the low I'd guess something is wrong. -- Jim
