Go Back  MBWorld.org Forums > Mercedes-Benz Coupes & Cabriolets > CLK-Class (W209)
Rev counter malfuncion w209 270cdi >

Rev counter malfuncion w209 270cdi

Notices
CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

Rev counter malfuncion w209 270cdi

 
Old 04-21-2019, 07:09 PM
  #1  
Newbie
Thread Starter
 
Join Date: Apr 2019
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
w209
Rev counter malfuncion w209 270cdi

Hello, MBWorld! A few hours ago this happened: I started the engine for the 1st time in 20+ hours and the rev counter stood at around 100 RPM. I noticed it about 2-3 mins into the trip. It was revving up when accelerating then it dropped to the same low values. Everything worked fine - AC (no impact on revs) no weird sound, everything was as usual, perfect acceleration, shifts, no weird noises, nothing. I am sure the car was working at regular revs. The only abnormal thing was the arrow being at around 100 rpm as shown in the picture. After about 7-8km of driving i stopped and turned off the car, restarted it immediately and it was perfectly fine with revs around 800 as usual. No real issues, just felt weird. No malfunction messages, everything is alright. All I know as a possible cause is that I had stopped at a slightly bent parking spot, about 30 degrees bent on the right hand side. Nothing else comes to mind. I'd love to know what someone with more experience thinks about this.
DS24 is online now  
Old 04-21-2019, 11:07 PM
  #2  
MBworld Guru
 
Rudeney's Avatar
 
Join Date: Dec 2009
Location: Birmingham, AL
Posts: 10,166
Received 780 Likes on 725 Posts
CURRENT: 2011 SL550, 2010 ML350, FORMER: 2007 CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD
My guess is that it's an issue in the instrument cluster. Since it seems OK now, just chock it up to "electrical gremlins".
Rudeney is online now  
Old 04-22-2019, 12:08 AM
  #3  
Newbie
Thread Starter
 
Join Date: Apr 2019
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
w209
I just drove it again, worked flawlessly. I wonder what might have caused it but I'm happy there's nothing huge going on. All my friends say ' if there is a problem the boardcomp would know, no malfunction - no worries' .
I think I just drive on and forget it. Rudeney I am unaware of the 'electrical gremlins' , sorry I'm still MB noob :P
DS24 is online now  
Old 04-24-2019, 02:20 PM
  #4  
Newbie
Thread Starter
 
Join Date: Apr 2019
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
w209
So an update: Everything was working yesterday, today I start the car, the rev counter stays dead at 0. No other issues, the car runs fine. I called my mechanic and he told me not to worry and that I can drive safely, almost certainly it is the arrow being broken, nothing serious. No malfunctions, etc. Easter is this weekend I wont me able to fix it immediately. Anyone else had this issue? Any possible tricks I can try to fix it ? Thanks!
DS24 is online now  
Old 04-24-2019, 04:14 PM
  #5  
Newbie
Thread Starter
 
Join Date: Apr 2019
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
w209
Aaaand out of the blue it works right now... WTF?!?!
DS24 is online now  
Old 04-25-2019, 06:06 PM
  #6  
Newbie
Thread Starter
 
Join Date: Apr 2019
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
w209
After series of tests I concluded that the rev counter doesnít work at start, when the car is cold. Then after about a minute the rev counter starts to move but doesnít show the real values. At this point if I restart the car the rev counter works fine. What should I do? It feels weird but kinda non issue, I really donít know...
DS24 is online now  
Old 04-27-2019, 08:54 PM
  #7  
MBworld Guru
 
Rudeney's Avatar
 
Join Date: Dec 2009
Location: Birmingham, AL
Posts: 10,166
Received 780 Likes on 725 Posts
CURRENT: 2011 SL550, 2010 ML350, FORMER: 2007 CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD
Sounds like a bad instrument cluster. Given the high cost to have it replaced, I'd just live with it. There are some electronics shops here that do repair them, but since you are not in the USA, I can;t recommend one.
Rudeney is online now  
Old 04-27-2019, 09:30 PM
  #8  
Newbie
Thread Starter
 
Join Date: Apr 2019
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
w209
It has worked for the last 2 days, I think If i keep the key on pos 2 longer it works, just thoughts though. I can live with it, thanks for the responses. A member of the local MB community said it could be due to faking the mileage - they did it badly. I am from Bulgaria and things here are a bit odd :P Thanks Rodney! I will write here if there is more info or update on the case, something like a log of the events. Good luck!
DS24 is online now  
 

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

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Rev counter malfuncion w209 270cdi


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: