Next . . my turn to replace the evaporator - PeachParts Mercedes-Benz Forum

JimF · #1 08-02-2007, 06:16 PM

Well, my turn in the barrel has come to replace the dreaded leaking evap.

A few weeks ago, I replaced the drain hoses and found UV dye in and around the drain nipples.

I plan on replacing the compressor, drier, evap + Ex valve, all gaskets/seals and use a PAG oil . . w/o any UV oil.

My questions;
1) What vendor would you use to replace it?? ACM (all alum), Valeo (copper), and Behr (alum) or any others that you have used.

Any words of wisdom would be appreciated so I don't do what this guy just did .

brewtoo · #2 08-02-2007, 06:22 PM

Well, I guess you're sorry now that you replaced those hoses!

As you probably already know, I used the ACM evaporator.

It was a nice piece and it almost fit well.

Be careful, my first one was damaged in shipping as it had NO packing in the box, evidently from the factory.

JimF · #3 08-02-2007, 06:38 PM

Quote:

Originally Posted by brewtoo

Well, I guess you're sorry now that you replaced those hoses!

As you probably already know, I used the ACM evaporator.

It was a nice piece and it almost fit well.

Be careful, my first one was damaged in shipping as it had NO packing in the box, evidently from the factory.

As you may recall, I posted into your thread re drain hoses. I knew it was leaking b/c 4 yrs ago, I used leak sealer! Printed small so nobody would see!

Yes, I saw the dimple in the end tube. What you do mean it almost fit well?? Did you need a 'filler'??

brewtoo · #4 08-03-2007, 12:02 AM

The TXV area where it comes out of the box did not quite fit as well as the original. I put a bit of sealer around the big foam gasket.

Consequently, my TXV ended up sitting slightly forward compared to the original and I had to loosen the clamp that holds the low side hose in the engine compartment so I could move it forward a bit.

The original fit PERFECTLY, but the ACM was acceptable. Of course, the original leaked and the ACM doesn't. They may not all be exactly the same.

JimF · #5 08-03-2007, 12:15 AM

Quote:

Originally Posted by brewtoo

The TXV area where it comes out of the box did not quite fit as well as the original. I put a bit of sealer around the big foam gasket.

Consequently, my TXV ended up sitting slightly forward compared to the original and I had to loosen the clamp that holds the low side hose in the engine compartment so I could move it forward a bit.

The original fit PERFECTLY, but the ACM was acceptable. Of course, the original leaked and the ACM doesn't. They may not all be exactly the same.

What was the original??? Could you see the manufacturer?? A Behr??

brewtoo · #6 08-03-2007, 12:52 AM

I didn't see any names on the evaporator, but my guess would be Behr. You can buy the entire heater box from the stealer and I think Behr makes it.

Matt L · #7 08-03-2007, 12:11 AM

Get DEC (Double End Cap) PAG oil for the system. It is not nearly as hydrophilic.