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Old 09-03-2017, 03:40 PM
w123fanman's Avatar
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Join Date: Jun 2011
Location: Georgia Tech, Atlanta, GA
Posts: 1,544
190E 2.6 AC/cooling upgrade- Parallel flow W202 condenser install

I had been interested in attempting this mod for a while after noticing the similarities between the W201 and W202 condensers. The connections are in similar places but the condenser if slightly wider and much taller.

I was able to test fit one at the yard so I ordered a Valeo unit off of Amazon for $87. I then pulled the aux fan assembly out of a 1st gen CLK from the yard (W202 is the same but all of them were already pulled). Since I am taking classes, most of the work was done by my friend but I can describe the process and point out things that I would have done differently.

Using the mounting brackets from the W202 fans, I mocked up the 201 fan brackets.

Holes need to be drilled on the 201 fan brackets to fit the 202 mounting brackets, plus maybe some grinding away of material. Again, my friend did this so I'm not entirely sure how it was accomplished but should be fairly straight forward.

The hose connections come out to about the same point as on the stock condenser. The #12(? larger) line can be reused. the #8(? smaller) must be replaced.

Depending on what fittings you have available, you can do a direct run down from the receiver drier to the #8 fitting but he didn't have that available and made a longer hose. These crimp tools are great.

Both sides are the same, he secured the condenser to the radiator with zip ties on the bottom. Ideally, we'd make brackets but for my mom's car, cosmetics didn't matter as much.

I don't have pictures of the top be holes were drilled in both the condenser and radiator to bolt them together. Ideally, we'd use brackets.

The stock condenser is designed to sit in between the tanks of the radiator, but since this one is wider, it sits outside of the radiator. That causes some clearance issues but provides a cooling benefit for both the radiator and the condenser by not having metal on metal heat transfer. This is how most modern cooling systems are done anyway.

Great thing able this mod is it makes servicing the AC so much easier. On the 2.6, the high side port is buried under the intake manifold. Now it's on the side of the condenser.

With this condenser and a new AC compressor (clutch was failing on original one after 215K) the pressures are much better running R134 than before and compared to my 190E. AC is much colder than my 190E which we also just serviced.

Decided to put the fan covers back on, they had to be cut to fit. I would have put a spacer between the two fan brackets as the original 201 mounting bracket has so the covers would only need to be cut on the bottom.

Fitting and fans do clear the grill, but just barely!

The last thing we need to do is to use something to give the fans a better seal against the condenser. Had we made a few more modifications to the mounting brackets, this might not have been an issue but we will figure that out when doing this same thinng on my 190E.

80 300SD 183K
83 300D manual 100K chassis
86 Yugo GV 48K
88 Yugo GVX 9K
90 300D 230K
90 Lexus LS400 189k
91 F150 4.6 4v 160K
93 190E 3.0 Sportline Limited Edition 230K
93 190E 2.6 Sportline Limited Edition 91K
96 MGM LS 242K- RIP
03 Sprinter Passenger 220K
06 MGM LS 105K-sold
Parts cars:
77 240D Auto-RIP
79 300SD- RIP
80 300SD
83 240D-RIP
85 240D-RIP
87 190D-RIP
91 190E 2.3- RIP
93 190E 2.6-RIP
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Old 09-07-2017, 02:24 AM
Benz300's Avatar
Benz Enthusiast
Join Date: Sep 2003
Location: new jersey, usa
Posts: 804
Awesome write up and pics. thanks for sharing.

Whether you think you can or cannot, Either way you're right!. by Henry Ford.
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