SLK55 (R171) 2004 - 2010: SLK200K, SLK280, SLK350, SLK55, SLK55 Black Series

SLK 350 Engine Vibrations

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 30, 2021 | 03:34 PM
  #1  
PappaBenz's Avatar
Thread Starter
Newbie
 
Joined: Apr 2021
Posts: 1
Likes: 0
2005 SLK 350
SLK 350 Engine Vibrations

Hey Folks, glad to be back here. Usually means I am having issues with the cars but always happy to hear from other MB fans and enthusiasts.

So my issue started a few days ago. 2005 SLK 350, 180k miles. Driving for about an hour or so, 88 degrees F. air temps. Stop and go traffic. typically no issues. On this day when I can to yet another light, the car felt like something dropped down into a lower gear and the idle dropped to about 475 rpms. After that it felt like I lost a cylinder whilst accelerating. Being old school I resorted to dropping the windows and turning the heat fully up. I watched the temp gauge gor from 90C to below 80. The problem still persisted but the good news is I lost 10 lbs in weight from the sauna. So next day, I drove it in C as opposed to the usual S and babied it to work. About 45 minutes. No issues. Drove it 2.5 hours away in 88F on the weekend and no issues. Started work again this week and the problem is back except today it was only 75F and was not so hot as usual. My gut is telling me a coil over is starting to die. what do you guys think. Oil and water are all up to snuff. Air cleaners where dirty. I cleaned them out and it seemed to run cooler but issue still happened right at 1 hour of drive time. Any suggestions before I do a full tune up including new coils?
Reply
Old May 5, 2021 | 07:13 PM
  #2  
cm60k's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Aug 2006
Posts: 7,053
Likes: 398
From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
Many things could cause Engine vibration or stall,

prefer if you can diagnose the car first,,

codes will help to narrow the issue, instead of losing time & $$$$ for not related parts..

-;-ZAYED-;-
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 11:19 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-8
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-9
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE