SL/SLC-Class (R107) 1971-1989 : 250SL, 280SL, 450 SL, 380 SLC, 450 SL, 380 SL, 560 SL

SL/R107: Stalling at Idle

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 24, 2005 | 09:55 PM
  #1  
Cabot's Avatar
Thread Starter
Newbie
 
Joined: Sep 2004
Posts: 13
Likes: 0
Stalling at Idle

Hello everyone. My 1973 450 SLC (130k) has been stalling while at idle in Drive. The MB mechs said that when the engine warms, the idle becomes irratic. They suggested that the sparkplugs, alternator, and associated wires be replaced, telling me that this might not solve my problem. Does anyone here have an idea what could be causing it?
Question 2:
I was helping my window go up by pushing it along, and I dislodged it from the track. The motor is working fine, but they said the regulator needs to be replaced. What is it? Could the regulator have been damaged from the window being off the track?
Reply
Old May 25, 2005 | 10:25 PM
  #2  
SouthernSon's Avatar
Almost a Member!
 
Joined: Nov 2004
Posts: 52
Likes: 0
'81 380SL/dual cam chain-LT4 vette-Z06 ('03) vette-I need a bigger garage....
Talking

I haven't gotten inside the door panel yet, but I have experienced two problems with idle that I repaired. First was the 'frequency valve' I think they call it. It is located on the left side of engine between valve cover and fuel injection system. Mine leaked and caused eratic idle w/surging at a stop.

Second problem arose while just coming off idle with the pedal. Car would die. I had to always push pedal aggressively and farther than just moving slowly forward. Solution was to adjust the million little throttle joints on the engine. It seems that unless all is adjusted correctly, some modules open up and operate before others........(best I could come up with......anyhoo, the car now works)
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 09:08 PM.

story-0
New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

Slideshow: Mercedes-AMG's updated GLE 63 S and GLS 63 bring a new-generation V8, subtle design revisions, and familiar supercar-rivaling performance figures.

By Verdad Gallardo | 2026-06-17 12:52:51


VIEW MORE
story-1
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-2
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-3
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-4
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-5
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-6
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-7
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-8
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-9
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE