Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 09-27-2004, 12:37 PM
pcmaher's Avatar
Big Black V12
Join Date: Apr 2003
Location: Chicago, IL
Posts: 430
Question What does a coolant leak smell like with MB coolant?

Every once in a while, my 95 S600 windshield fogs up near the base of the windshield (inside surface). When I turn on the defrost, the windshield really fogs up fast, but after 10 or so seconds it clears up fast. This doesn't seem normal to me. I am wondering if I have a small coolant leak in the heater core. I'm used to the green coolant used in American vehicles, and my nose is sensitive enough to smell small leaks with this stuff. The MB coolant does not seem to have that "sweet-ish" smell. The car was pressure-tested, and passed requirements. I know that a small leak might not show up during this test. Can anyone tell me if a sniff-test is possible, or are there any other recommendations?

p.s. There is no sign off coolant in the passenger compartment. I disassembled the area to see if the condensation drain lines were working properly, and they are. Everything looked OK in there.

1995 S600, 1 of 618 (sold)

"Speed is just a question of fast you wanna go?"

Visit my Web Page at
Reply With Quote
Old 09-27-2004, 12:47 PM
Registered User
Join Date: Aug 2003
Location: New Orleans, LA
Posts: 305
I would just remove the rad cap (WITH ENGINE COLD!) and take a whiff, that will tell you what it smells like. If it were coolant it should be a kind of greasy film on the windshield.
2005 Mercedes C230k sport sedan, 6 speed
1987 Porsche 924S - 968-engined track car
Reply With Quote
Old 09-27-2004, 02:16 PM
I told you so!
Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,844
I always thought of it as a hospital antiseptic smell.

I think your car is behaving normally. I also sometimes get a temporary fog when I turn on the defrost or a/c. This is probably because the evaporator box is wet with condensation from the previous day's a/c use.

95 E320 Cabriolet, 153K
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 07:00 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page