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 ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 05-13-2002, 05:27 PM
Registered User
Join Date: Jan 2002
Posts: 352
HELP HELP sulfur smell from the ac

I have 99 s420 and yesterday coming from a trip to San Diego from LA, suddenly my AC blew a whiff of sulfur into the cabin. It was pretty potent, kind of like Chem 101 S2 stuff. It happened twice yesterday. Once in afternoon and another at night. My ac was on LO both sides and I was at 3 lines of fan. It was not the first time it happened either. I have 45000 miles. Plus once I changed my antifreeze at the dealer this year, they only used one bottle for it. Usually I am running at 100c but before I was 80. Is one bottle good enough. Please post if you can help me out.
Reply With Quote
Old 05-14-2002, 11:13 AM
Registered User
Join Date: Jan 2002
Posts: 352
By the way I had about 900 lbs of passengers including myself and some lugage. I was going 65 at cruise control.
Reply With Quote
Old 05-14-2002, 08:05 PM
renok7's Avatar
Registered User
Join Date: Nov 2001
Location: Montréal
Posts: 95
Are you sure one of your passengers didn't break wind?

'93 300E 4Matic
'98 Nissan Altima
'00 Yamaha Road Star Silverado
Reply With Quote
Old 05-16-2002, 03:33 PM
Registered User
Join Date: Jan 2002
Posts: 352
Yes I'm sure. I think it is because its running rich and the cats are trying to burn the excess fuel. I have heard bad gas will cause this problem but I have always used Chevron supreme 91 octane and I have never added any octane boost or any other fuel system cleaners.
Reply With Quote
Old 05-16-2002, 07:20 PM
Registered User
Join Date: Feb 2002
Location: South Eastern, MA
Posts: 1,743
This may be way off the topic since I don't know a great deal about your car but check your battery.

The last time I had a nasty sulfur smell coming into the car it was my alternator over charging the battery. The battery was getting soo hot it would cause the acid to boil and create an awful smell like rotten eggs.

I found that my voltage regulator had gone bad and I simply bought the part and installed it on the alternator. I believe cost was $70.00 and the installation was very simple on a 190E.

02 C32 AMG

92 500E
84 190E 2.3 5 Spd
Reply With Quote
Old 05-16-2002, 07:51 PM
Registered User
Join Date: Jan 2002
Posts: 352
My battery is 4 months old (genuine MB) and using the climate control lcd I usually have 13.9-14.1 volts. I never drive like Schumacher in my S-class so I dont think I am overfueling (running rich) but I think that the sulfur deposits in the catalytic converter are heating up and burning away. I was on my way to San Diego, so I would assume all the components were getting pretty hot. My temp was at a steady 100C IN 75f ambient weather. I also remember the same smell once I was driving to Las Vegas with similar passenger load. Anyways, Ill go to Benz tomorrow and keep you guys posted.
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 04:35 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, 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