How to replace/change a/c condenser on SLK 230 - Mercedes Benz SLK Forum

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#1 Old 05-07-2013
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Post How to replace/change a/c condenser on SLK 230

How are you doing folks?!
Whew.... that was a loooong day for me. Got my a/c condenser replaced today.
Had posted my troubles in this thread:
https://www.slkworld.com/slk-r170-gen...blow-cold.html
Used Aycee's instructions (Great thanks to him for the input!) as per his 320 and it was a little different on my 230. I had to remove loooooots of stuff. You need 2-3 hours of time and some patience. I also replaced all O-rings that were on my way. I must say they were in a really good shape. Shouldn't have worried about them.

Ok, are you ready?!

































And a few extra pictures




1) Jack up the car or use ramps. First you need to drain the coolant. Really simple. There's a red drain plug on the bottom. To save yourself from mess I recommend finding a piece of rubber hose that would fit the draining point. Snap it in, remove the coolant reservoir cap, unscrew red drain plug and give it about 5 minutes to drain. Then press couple times on the top coolant hose to push some leftovers out to prevent from dripping when we disconnect the back hose from the bottom of the coolant reservoir. Yes, we will need to remove the coolant reservoir too


2) Next we need to disconnect two hose holders from the back of the radiator fan. Also, there's also one clip on the bottom in the middle of the radiator fan. The hose simply snaps into it. Watch for it!


3) Loosen the retaining ring and disconnect both top coolant hoses (small and large) from the engine.
4) Remove two T20 torx screws from the MAF to remove the MAF pipe

5) Undo two clips on the bottom of this pipe and remove the MAF pipe.
6) Undo two 10mm bolts that hold the coolant reservoir.

7) Loosen the retaining ring that holds the coolant hose to its bottom. Remove this coolant hose. Watch for any coolant in there!
8) Remove the coolant level sensor. You can do it two ways: either try to unplug it. Or, in my case the plug was too tight and I just twisted the sensor (counter-clockwise) and removed it from the coolant reservoir.

9) Disconnect the radiator fan.

10) Remove two metal clips that hold the radiator fan to the radiator itself

11) Now simply pull up the radiator fan and put it aside.
12) Loosen the retaining ring that holds the top coolant hose to the radiator and remove this hose.

13) Disconnect the two air conditioning pipes. One is 19mm. The other one is much bigger. Use handy tools. NOTE: BE very careful when tightening these lines back to the new condenser! It's aluminum - it's fragile... =) Be very cautious!


14) While in there remove two 10mm bolts from the rubber support (can be seen from the 1st picture)


15) Remove two clips that hold the radiator to the body frame.

16) Push the top of the radiator towards the engine.
17) Remove two 10mm bolts that hold the a/c condenser to the radiator.

18) Now we need to remove the lower part of the MAF pipe. Undo two 10mm bolts .

19) Loosen the retaining ring on the bottom of this pipe and take it out.

Sort of general view:

20) Take the cover off the air filter to give yourself a little more room. Then remove the plastic air guide.

Ooops... reached my 10,000 word limit. On to the next post!

Last edited by jbanks15; 07-17-2017 at 04:30 PM.
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#2 Old 05-07-2013
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21) Next, we need to remove some more plastic shields in front of the condenser. Remove 3 clips that hold the center plastic shield and remove the latter one.

22) On the driver's side there's one more small plastic shield. You can either remove it by removing the same plastic clip but the cap on mine broke off =( I was able to push on it from the top and move it to the left.

23) Now carefully remove the condenser. You might want to jiggle wiggle the radiator to give you more space here and then there and so on But it gets out pretty easy!

24) Do you remember you have loosened two 10 mm bolts by the a/c condenser piper to allow for removal of the rubber support. Here's how it looks like. You'll need it when installing your new a/c condenser

25) Now you need to remove 2 rubber grommets from the old radiator and transfer it to the new one!


26) Ok, now it's time to put the new a/c condenser back. I strongly advise you to practice with your old condenser putting it back. This way you'll see where to move the radiator to get these bottom lines in. And you'll have less chance of damaging these lines on the new condenser. Take your time, practice with the old one (it's trash anyways ) and the new one costs at least $200. Practice!
Don't forget to install this rubber support on the bottom by the lines =)

27) Now it's time to replace new O-rings. I got some leftover oil from the bottom a/c pipe and put it in a bottle cap . I dipped my new O-rings in it and fitted it on the a/c pipes. Make sure everything is clean at the connections!!!!! Clean Clean Clean!


I'll post another pictures tomorrow of location of other 3 O-rings.

28) Tighten back the a/c condenser line bolts. BE CAREFUL!!!! DO NOT BEND THEM IN ANY WAY! THAT'S Aluminum!!!!

Now assemble everything in back order, put the coolant back in. Or maybe it's time for a new coolant??! I'll do mine tomorrow. Toooooo tired.
Check for air pockets, coolant level, and head out to get your a/c system refilled!

I think you deserved a beer - go grab a couple!

Parts removed:

Ahhh.. it feels so much lighter right now

Last edited by jbanks15; 07-17-2017 at 04:31 PM.
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#3 Old 05-16-2013
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Oh, did I forget to tell you?! After recharging the system it's ice cold!!!! Feels like I'm in Alaska right now =)
I was told that it took 2.2 lbs of freon.
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#4 Old 07-02-2017
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Hi,

is it possible to repost your photos? I have to change my condensor.

Thx,

Koen
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#5 Old 07-02-2017
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Originally Posted by Koen De Winter View Post
Hi,

is it possible to repost your photos? I have to change my condensor.

Thx,

Koen
Welcome to SLKWorld.com: The #1 Mercedes-Benz SLK Forum from Florida!

First please update your location and vehicle (Put Looking!)(year?: 1996-2017, model?: 32, 43, 200, 230, 250, 280, 300,320,350,55) in your profile as it helps the members answer your questions which usually are based on that information if you haven’t. This takes about 30 seconds to do.
Follow exactly to update: ‘Usercp’ at the top of page, then ‘edit your details’ on the left side, ‘additional information’ near the bottom, edit your ‘location’ and ‘vehicle’. Info in your garage does not update your profile.

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#6 Old 07-02-2017
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hosting site that this member uses wants more $$ @JaysonM

always better to upload pics to our site so they are never lost

here is a search of our site on replacing condenser

https://www.google.com/#q=site:slkwo...lace+condenser


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Hi Koen and Jeff!
Ah, rats, Photobucket changed their 'terms of service' and it no longer wants users to embed pictures to other websites by referencing their website... AND they want $399 a year to be able to do that. They're just nuts... I will need to find another solution. Sorry folks. It has been working great till now. Let me see what I can do.
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Jayson, good to see you

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