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#1
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1994 E420 A/C problem.....advise needed
I bought this car last July. The AC was freshly charged when I bought it and worked fine, but stopped working two weeks later. The MB dealer checked out the system and found nothing wrong; the system started to work again. I drove cross country to AZ, and everything worked well all through the 115 degree summer. I stopped using the AC in fall, but noticed that the system seemed to go on and off once in November when I used the AC (wasn't sure, since it was cool outside anyway). Now the system doesn't work again. I took it to the local dealer, who said I need a new evaporator and expansion valve.
Is there any other switch/control that could explain the AC problem apart from the expensive evaporator repair? I'm not sure this dealer spent any real time diagnosing the problem. I know the last dealer spent a good amount of time checking out the system and found nothing wrong then with the evaporator. Any advise would be greatly appreciated. Thanks. |
#2
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An evaporator problem doesn't come and go. The problem they have is that they leak.
Find an independent that will do a florescent leak test. Have them find out if the system is low and then refill it and see how long it lasts and then find the leak for sure with a black light. There are plenty of electrical reasons for the system to not function and then function. Not so with a leak.
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Steve Brotherton Continental Imports Gainesville FL Bosch Master, ASE Master, L1 33 years MB technician |
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