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Old 07-17-2003, 10:45 PM
Newbie Benz Driver
Join Date: Dec 2002
Location: Between Oakland and Vallejo, CA
Posts: 253
107 chassis questions.

  • Can the A/C handle R134a refrigerant? I'm planning to do a compressor swap in this car. Is there anything else i should look at when the A/C is being worked on?
  • How reliable are the steering gearboxes? My gearbox is leaking, so should i just reseal itm or get a new one?
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Old 07-17-2003, 11:43 PM
Registered User
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
The AC will work OK with R134a. Don't charge to the weight listed for R12, use 85% (this is really the same amount since R134a weighs less). Over charging will reduce low speed cooling, and you may loose some idle cooling anyway. If you get a new compressor, it will come with R134a compatible oil in it. You will need to flush all the oil out of the old system.

Re-seal the steering box, there is a kit on Fastlane, I think. The seals leak with age (much worse on the W108 chassis, too close to the exhaust).

1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
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