I am afraid to say that I have joined the dreaded club of A/C woes.

I took my 87 300TD in to have the A/C fixed and was told that the push button control (PBC) unit was bad, new Klima relay and leaky hoses, and clutch needed to be reshimmed. Ordered the PBC unit and installed it myself, new Klima relay and had them change the hoses and fix the clutch. Get in to leave and the car has A/C on. Very cold, almost to cold. Then I notice that the A/C is on with the HEATER on. Stop the car and the compressor is engaged under all conditioned. Pulled out the new Klima relay and installed the old one. THings righted themself and thing look good. Turn off the A/C and drive home. Full heat at all times. I diagnose bad PBC unit. Try to get a replacement one but they vendor is out of stock. Send in the return with the Klima and get a full refund. Locate one in Oakland and go pick it up and install it. Everything back to normal except still no A/C. COmpressor is on but no cold air. Make another appointment and send the car back to the original shop. THeir diagnosis is the compressor is shot, most likely a broken shaft since it turns but no cold air. They want $1050 to change out the compressor and reciever dryer.

I am stumped. Is it a coincidence that the compressor failed directly after the clutch shimming and service? They claim that the added pressure from the newly charged system did it in. I am confused by all this.

Any suggestions would be appreciated.

Henry

__________________
63 190d (sold)
69 220D (sold)
69 280SL (sold)
76 BMW 2002 (sold)
86 190E-16v (Demised at Laguna Seca Turn 9)
87 300SDL (sold)
87 300SDL 135k
87 300TD 280k (sold)
95 E320W 211k
95 E320w 111k
05 C320 4matic
06 E320 CDI 90k (Totaled by a texting 19 year old girl in a nissan)
2013 GLK 250 Bluetek 4MATIC

If it was "very cold, almost too cold" as you mentioned, the compressor could hardly be shot.

Put a minifold gauge on your system. Check high and low side pressures. You can cycle the compressor by disconnecting the low pressure cutoff switch on the receiver dryer.

__________________
Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.

he shop did this and claims that their is no differential pressure across the compressor. This would indicate a bad compressor.

My question is what could tthe shop have done to make this happen?

Any suggestion would be helpful.

Henry

__________________
63 190d (sold)
69 220D (sold)
69 280SL (sold)
76 BMW 2002 (sold)
86 190E-16v (Demised at Laguna Seca Turn 9)
87 300SDL (sold)
87 300SDL 135k
87 300TD 280k (sold)
95 E320W 211k
95 E320w 111k
05 C320 4matic
06 E320 CDI 90k (Totaled by a texting 19 year old girl in a nissan)
2013 GLK 250 Bluetek 4MATIC

Let me ask you a question if you don't trust the shop you went to then why did you go there in the first place?

[QUOTE]Originally posted by HGV
no differential pressure across the compressor.

Huh??????????????????????????????