The system is under pressure. It will freeze your hands by simply disconnecting the drier!! So, remove freon with a recovery machine, then remove/replace drier. Then vacuum system down, then add 134. If 134 is low, it has a leak somewhere. When you add the 134 add leak detection dye to the system and check for a leak in 2 weeks.

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81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.

+1

Simply solution.

Bring it to my shop, where I charge $49.95 service fee plus the cost of the freon added.

We recover, measure whats in there, check for leaks, test the operation of the system, and ad some dye for finding future leaks.

Most customers get out of there for about $80.

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1990 300CE. Garage kept all its life. Looks & Runs Like New. Everything works. White w/Palomino int. Pioneer 12 CD player in the boot. 17" Enkei LX-F Chrome wheels w/Falken Azenis ST-115 225-45 tires. Tinted windows. Black sports grill w/Euro clear front lamps.