1988 300E hvac -- Why me, Lord? Why me? - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 19 (permalink) Old 06-02-2019, 06:45 AM Thread Starter
Lifetime Premium Member
 
augapfel's Avatar
 
Date registered: Jan 2006
Vehicle: About a dozen 1988, 1989, 1990, and 1991 sedans, wagons, 4Matics and 1 coupe
Location: Just west of Philly
Posts: 5,446
Mentioned: 0 Post(s)
Quoted: 52 Post(s)
Lifetime Premium Member
(Thread Starter)
1988 300E hvac -- Why me, Lord? Why me?

Haven't been here for awhile. Too busy. Too tired. But my recent discovery is so unbelievably bad I needed to share my misfortune.

A couple of years ago I bought a white 88 300E from a former BenzWorld member. I had worked on this car some years ago and knew it was a pretty nice car. When the owner wanted to unload it due to a failed transmission I declined. Too many cars, too many projects. A month later he called again to say he was going to have the car towed away. Do it I said. Come see it he said. I declined. Another month went by and he called again. Cutting to the chase I did eventually go to see the car and, for better or worse, bought it.

Cosmetically it is a very nice car. Original paint, very, very nice original palomino leather interior. 156k. Decent service history. He spent many times over the selling price to me on repairs and maintenance. But like any 30 year old car it needed attention. And, like always, it needed more attention than I expected.

The first big kick to the family jewels was discovering that, following transmission replacement, the spark plugs fouled. I knew what would be required and dove right in. Pulled the head, had all the guides replaced, a valve job done, etc. Replaced the bad camshaft (2 wasted lobes) and rocker arms with the updated parts (used) from the blown up engine from another BenzWorld member car purchase. The engine was now back together and running great. Things were looking up.

Well yesterday I discovered something that will require *a f$%&ing LOT* more attention.

Wipers were jerky. No big deal I said. I have spares I said. Blower motor inop. No big deal I said. I have spares I said. It's actually a toofer with those jobs so I wasn't worried.

Because it was handy I pulled the necessary parts from my soon-to-be-scrapped 88 300TE (smoke silver). The parts pulling went exactly as I expected. No big deal.

As evening approached I wanted to get those parts into the white 300E so I could have wipers, cabin ventilation, and get the car inspected this coming week. That would not come to pass.

Firstly I couldn't get the windshield lower trim strips off the car. They were stuck on like nobody's business and I didn't understand it. Eventually I got the driver's side off, damaging it, and discovered the problem. The windshield had been replaced and some wanker had urethaned the f$#% out of it so there was major squish out and some added as well at the bottom of the windshield. The trim strips were clipped *and* glued in place! With that info I got more aggressive on the passenger side but it simply would not budge. When the strip does finally break loose I hear a "craaack!" and sure enough I've cracked the windshield. No idea how. The clip is still riveted to the windshield frame so that didn't do it. Oh well, the install was poorly done and there was a slight wiper mark, so I can live with this setback. But things got worse. Much worse.

I remove the cowling and the wiper motor assembly (which was also glued to the windshield). Fine. Whatever.

Now it's time to remove the locked up blower motor. No big deal. Clips released, cover off, blower motor unplugged and removed. Ah, the end is near. I can hear that new blower motor running already! But it would come to pass.

As I looked into the area under the blower motor to check for any debris against the evaporator I discover something horrifying. I'm still not sure when I'll have the time or energy to deal with this.


Can't upload pics. A security token is missing? Administrators? Help!

Last edited by augapfel; 06-02-2019 at 06:47 AM.
augapfel is online now  
Sponsored Links
Advertisement
 
post #2 of 19 (permalink) Old 06-02-2019, 09:21 AM
BenzWorld Veteran
 
Date registered: Jul 2007
Vehicle: 95 E300, 91 300TE, 84 190D
Location: Maryland
Posts: 755
Mentioned: 2 Post(s)
Quoted: 16 Post(s)
Galvanic corrosion

I wonder why the Mercedes engineers did this to us- how could they not understand copper and aluminum don't play nice together? I've replaced one evaporator on the E300, and now must do one on the 300TE.

I understand your pain....

Last edited by ds190; 06-02-2019 at 09:32 AM.
ds190 is offline  
post #3 of 19 (permalink) Old 06-02-2019, 09:57 AM
BenzWorld Veteran
 
Robert Kyle's Avatar
 
Date registered: Feb 2018
Vehicle: 1994 e320 coupe (sold), 1990 300CE ($400 beater)
Location: Seattle, WA, USA
Posts: 718
Mentioned: 1 Post(s)
Quoted: 163 Post(s)
What'd you see?

Let me try to upload a picture...
Robert Kyle is offline  
Sponsored Links
Advertisement
 
post #4 of 19 (permalink) Old 06-02-2019, 09:58 AM
BenzWorld Veteran
 
Robert Kyle's Avatar
 
Date registered: Feb 2018
Vehicle: 1994 e320 coupe (sold), 1990 300CE ($400 beater)
Location: Seattle, WA, USA
Posts: 718
Mentioned: 1 Post(s)
Quoted: 163 Post(s)
Guess not
Robert Kyle is offline  
post #5 of 19 (permalink) Old 06-02-2019, 10:34 AM
BenzWorld Extremist
 
Date registered: Nov 2008
Vehicle: 93' W124 E36 AMG ; 71' Cadillac Eldorado
Location: Bielsko-Biala / Cracow - Poland - Europe
Posts: 1,006
Mentioned: 0 Post(s)
Quoted: 12 Post(s)
Every time I fill up my A/C, I feel it doesn't really do its job properly. The fan sometimes comes on and sometimes not. And after a few months it barely even cools the air down.

I guess I need to replace my AC core as well. Should have done it, when I was already in there replacing heater core. I can feel the pain.

I wish I could replace the whole heater box with a filtered one, since I am allergic to pollen.
MaxMatt is offline  
post #6 of 19 (permalink) Old 06-03-2019, 09:58 AM
Outstanding Contributor
 
luckymike's Avatar
 
Date registered: Mar 2010
Vehicle: 1989 560SEC, 1989 560SEL, 1995 E420
Location: NorCal
Posts: 3,892
Mentioned: 9 Post(s)
Quoted: 580 Post(s)
augapfel, I'm really sorry for your experience with this car but want to thank you for the great writeup. I hope you won't be offended but your opening post cracked me up! I mean, it's such a bummer how it all went but your way of presenting it was brilliant. You should be a writer.

I assume you discovered the evaporator needs to be changed. I'm sure that day is coming on my Dad's 300TE and I should start mentally preparing now for it.
luckymike is offline  
post #7 of 19 (permalink) Old 06-03-2019, 10:38 AM
BenzWorld Member
 
Walt'89300CE's Avatar
 
Date registered: Oct 2018
Vehicle: 1989 300CE & 1971 280SE; 73.5 911T
Location: York, PA
Posts: 138
Mentioned: 0 Post(s)
Quoted: 45 Post(s)
I thought maybe a big rust hole.
Walt'89300CE is offline  
post #8 of 19 (permalink) Old 06-04-2019, 04:17 AM Thread Starter
Lifetime Premium Member
 
augapfel's Avatar
 
Date registered: Jan 2006
Vehicle: About a dozen 1988, 1989, 1990, and 1991 sedans, wagons, 4Matics and 1 coupe
Location: Just west of Philly
Posts: 5,446
Mentioned: 0 Post(s)
Quoted: 52 Post(s)
Lifetime Premium Member
(Thread Starter)
Trying again in a new post. Nope, it's not a bad evaporator core. Nor is it rust. It's something I've never seen before.

Crap! Upload failed due to a missing security token.


Edit:
A few minutes after I posted this message I got a pop up saying that my "submission" could not be processed due to a missing security token. But the message posted. Hmmm.

Last edited by augapfel; 06-04-2019 at 04:20 AM.
augapfel is online now  
post #9 of 19 (permalink) Old 06-04-2019, 04:22 AM Thread Starter
Lifetime Premium Member
 
augapfel's Avatar
 
Date registered: Jan 2006
Vehicle: About a dozen 1988, 1989, 1990, and 1991 sedans, wagons, 4Matics and 1 coupe
Location: Just west of Philly
Posts: 5,446
Mentioned: 0 Post(s)
Quoted: 52 Post(s)
Lifetime Premium Member
(Thread Starter)
Quote:
Originally Posted by luckymike View Post
augapfel, I'm really sorry for your experience with this car but want to thank you for the great writeup. I hope you won't be offended but your opening post cracked me up! I mean, it's such a bummer how it all went but your way of presenting it was brilliant. You should be a writer.
Thanks. I was a technical writer in the automotive service industry for 12 years. So there's that...
luckymike likes this.
augapfel is online now  
post #10 of 19 (permalink) Old 06-04-2019, 05:46 AM
BenzWorld Senior Member
 
Date registered: Jan 2008
Vehicle: 1995 E220
Location: Earth
Posts: 505
Mentioned: 1 Post(s)
Quoted: 78 Post(s)
Quote:
Originally Posted by augapfel View Post
A few minutes after I posted this message I got a pop up saying that my "submission" could not be processed due to a missing security token. But the message posted. Hmmm.
Are you using 'Quick Reply' or 'Go Advanced', may be 'Manage Attachment' option under 'Go Advanced' might work.
PhantomLord is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W124 E,CE,D,TD Class

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 

Title goes here

close
video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome