oil light on - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Vans/Trucks/SUV/Others > V-Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-09-2009, 06:21 PM   #1 (permalink)
BenzWorld Member
 
Date registered: Mar 2009
Posts: 62
oil light on

Hi, anyone know what the most common cause for the oil light coming on is when the oil level is fine? Thanks
moov4oo is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-09-2009, 11:00 PM   #2 (permalink)
BenzWorld Elite
 
Punjabi's Avatar
 
Date registered: Mar 2005
Vehicle: Bandwidth
Location: In Virtual Reality
Posts: 3,256
Quote:
Originally Posted by moov4oo View Post
Hi, anyone know what the most common cause for the oil light coming on is when the oil level is fine? Thanks
1. Faulty oil sensor switch.
2. Wiring to switch/contact loose/cracked.
3. Oil pressure low - oil pump in sump iffy.

Sure oil level is ok?
Punjabi is offline   Reply With Quote
Old 05-10-2009, 02:00 AM   #3 (permalink)
BenzWorld Member
 
Date registered: Mar 2009
Posts: 62
Thank you for the tips. The oil level is definitely ok. The oil light comes on and goes off through out a journey. I was told by mb garage that my 99 vito does not have an oil pressure switch and only senses oil level. Thanks once again
moov4oo is offline   Reply With Quote
Old 05-12-2009, 12:47 AM   #4 (permalink)
BenzWorld Member
 
zenedge's Avatar
 
Date registered: Jun 2008
Posts: 297
Hi,

Double check the oil level, most people would accept that oil level is ok if it's a little over the top mark on the dipstick, but needs topping up if it is lower than the bottom. However on the vito, if there is too much oil this will cause the warning light to come on as the pressure will be too high and could cause problems.

The guy i bought my van from told me he had "topped it up with oil", it seems he didn't check whether or not it needed any first, or didn't take care to make sure that he didn't put too much in. Caused a load of oil to blow out all over what was a clean engine during the next couple of hundred miles. Luckily that's all that happened, no long term damage.

You may have to drain a little out, or just go for a full oil change. It might not be that, but worth double checking to be sure.

Cheers,

Gordon.
zenedge is offline   Reply With Quote
Old 05-30-2009, 07:04 AM   #5 (permalink)
BenzWorld Member
 
Date registered: Mar 2009
Posts: 62
Oil light was coming on and off at varying intervals on my 112 99v have changed the oil level sensor (70) as i am told this van does not have an oil pressure sensor. The problem has been sorted.
moov4oo is offline   Reply With Quote
Old 07-07-2009, 12:29 PM   #6 (permalink)
BenzWorld Member
 
fuzzbox's Avatar
 
Date registered: Jun 2006
Vehicle: Vito 112CDI
Location: Swansea
Posts: 147
It happened to me last week on a drive down to Kernow - oil light came on...pulled over and let her chill for ten minutes (oil level ok), light off - problem has not reappeared.

Oil pressure sensor - how much of a mission is this to change? Pricey part?

Fuzz
fuzzbox is offline   Reply With Quote
Old 07-08-2009, 03:45 PM   #7 (permalink)
BenzWorld Member
 
Date registered: Mar 2009
Posts: 62
part is £70 dont know labour cost as the garage did it with some other things but i remember the bill was £200 including other stuff i wanted done. not sure what they were now.
moov4oo is offline   Reply With Quote
Old 07-08-2009, 11:03 PM   #8 (permalink)
BenzWorld Junior Member
 
Date registered: Jul 2009
Posts: 38
The oil level sensor is super sensitve, they work on lilimeters. You have probably over filled the van as this is far more common than changing the sensor. When the vehicle is cold the oil level should be right in between the two red marks on the dipstick. Then when the vehicle heats up the oil will expand up to the top mark and thus avoid any hassles with the oil light. The oil level sensors are usally pretty good. Working on these things for years and have probably changed one.
bigdog08 is offline   Reply With Quote
Old 07-09-2009, 02:45 PM   #9 (permalink)
BenzWorld Member
 
Date registered: Mar 2009
Posts: 62
i had 3 seperate oil changes and it made no difference. the levels were spot on. since changing the sensor it has not happened again in over 3 months. I was told by the mechanic that they were essentially just a float switch and when the oil went below a certain level the float drops and breaks the circuit. Please dont quote me on this, its just what i was told.
moov4oo is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Vans/Trucks/SUV/Others > V-Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Topic Author Forum Replies Last Post
ABS acting up , srs light being funny , brakes weird, oil light sometimes flashes jimmypop W126 S,SE,SEC,SEL,SD,SDL Class 11 10-03-2007 06:04 PM
Oil warning light, reduce oil level Hjat W203 C-Class 0 09-17-2007 02:40 AM
Low oil light on but oil level is correct bavenda W163 M-Class 4 05-22-2007 08:48 PM
Are these gaskets light or heavy wear? (Oil pan & oil filter) Rollingstone W126 S,SE,SEC,SEL,SD,SDL Class 9 08-24-2006 06:57 AM
Low Oil light illuminated - but plenty of oil...??? benkokes R170 SLK Class 1 10-26-2005 07:05 AM


All times are GMT -7. The time now is 01:14 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.