Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: Engine Diagnostics
- Mercedes-Benz C-Class: Why Is My Car Burning Oil?
Guide to diagnose trouble and recommended solutions
Browse all: Engine Diagnostics
Oil leak...?
#1
Senior Member
Thread Starter
Join Date: Jan 2009
Location: SoCal
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
C350
Oil leak...?
Hey guys, so my car recently has been giving off a VERY bad smell, like oil leaking. Then a couple days later as I pull out of my driveway i see oil has been leaking from the bottom of my car. (it was a black fluid; looked exactly like soy sauce. I'm not sure if oil is black or clear?) I also have HID's installed on my car, is there any way that my HID's could have caused my oil to leak? Im afraid to take it in for service and they not cover it AND void my warranty :/. Help plz!!!
#2
Member
Join Date: Nov 2010
Location: NJ
Posts: 158
Likes: 0
Received 0 Likes
on
0 Posts
2012 C350 coupe
Hey I doubt that the HIDS being part of the electrical can have any effect on the oil, however i could be wrong. Also they cannot void your warranty unless they prove that the HIDS caused the oil to leak.
#3
MBWorld Fanatic!
Join Date: Aug 2004
Location: MA
Posts: 1,367
Likes: 0
Received 3 Likes
on
3 Posts
'15 E350 4M Sport
Hey guys, so my car recently has been giving off a VERY bad smell, like oil leaking. Then a couple days later as I pull out of my driveway i see oil has been leaking from the bottom of my car. (it was a black fluid; looked exactly like soy sauce. I'm not sure if oil is black or clear?) I also have HID's installed on my car, is there any way that my HID's could have caused my oil to leak? Im afraid to take it in for service and they not cover it AND void my warranty :/. Help plz!!!
#4
Senior Member
Join Date: Oct 2009
Location: MD
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
'09 C350
Hey guys, so my car recently has been giving off a VERY bad smell, like oil leaking. Then a couple days later as I pull out of my driveway i see oil has been leaking from the bottom of my car. (it was a black fluid; looked exactly like soy sauce. I'm not sure if oil is black or clear?) I also have HID's installed on my car, is there any way that my HID's could have caused my oil to leak? Im afraid to take it in for service and they not cover it AND void my warranty :/. Help plz!!!
goodluck but installing HID would not void ur warranties
#5
Senior Member
Thread Starter
Join Date: Jan 2009
Location: SoCal
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
C350
Im afraid that it might be some sort of heating or cooling(A/C) fluid. Do our cars even have fluids for those? Becuz one of my HID's as I see is sitting right next to one of those lines thats supposed to be for the heaters. I dunno. But ya no warning signs, just a bad smell from the outside of the car and sometimes it comes inside too.
#6
Super Member
Im afraid that it might be some sort of heating or cooling(A/C) fluid. Do our cars even have fluids for those? Becuz one of my HID's as I see is sitting right next to one of those lines thats supposed to be for the heaters. I dunno. But ya no warning signs, just a bad smell from the outside of the car and sometimes it comes inside too.
For your on peace of mind you should have them look at it just to be on the safe side.
Last edited by IGB; 01-30-2011 at 01:01 AM.
#7
MBWorld Fanatic!
Cars have a habit of communicating with their owners .
When thay are not feeling too well or are tired they make noises, smells, vibrations, drop puddles or steer strangely.
Owners should take action as soon as they notice this information.
I would guess you have an engine oil leak that is contacting your combustion or exhaust system .
Opening the bonnet ( hood) might reveal the problem.
Check your oil level also before driving to the mechanic.
Good luck & let us know the outcome.
When thay are not feeling too well or are tired they make noises, smells, vibrations, drop puddles or steer strangely.
Owners should take action as soon as they notice this information.
I would guess you have an engine oil leak that is contacting your combustion or exhaust system .
Opening the bonnet ( hood) might reveal the problem.
Check your oil level also before driving to the mechanic.
Good luck & let us know the outcome.
Trending Topics
#8
Senior Member
Thread Starter
Join Date: Jan 2009
Location: SoCal
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
C350
I realized last night it has something to do with my horn!!! My horn has gone from a deep noise to a high pitched clown sounding one.. WTF! I'm gonna take it in for service tommorow and see what happens...
#9
Senior Member
Thread Starter
Join Date: Jan 2009
Location: SoCal
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
C350
So i took it in for service and apparently oil was leaking in the back of my engine... they fixed it up and I think that means I got a free oil change. And something with the relay in my horn was messed up and not related to the oil at all. Oil leak at 30k miles? how realiable are our cars??
#10
Senior Member
Do you have the paperwork from the dealership about what caused the leak in the first place?
It should state in their report what the cause was (leaking gasket, oil filter replacement, ect..) If they didn't provide the info you should contact them to find the source. I bring it up because 30k miles is nearing your warranty end. If you have it on paper about the problem you can bring it up before warranty expires and get a free full inspection.
I always ask for the source before any repairs are done to my car.
It should state in their report what the cause was (leaking gasket, oil filter replacement, ect..) If they didn't provide the info you should contact them to find the source. I bring it up because 30k miles is nearing your warranty end. If you have it on paper about the problem you can bring it up before warranty expires and get a free full inspection.
I always ask for the source before any repairs are done to my car.
#11
Super Member
Join Date: Oct 2009
Location: New Jersey/ Aviano Air Base, Italy
Posts: 681
Likes: 0
Received 0 Likes
on
0 Posts
'08 c300 sport
Have you had an oil change recently? I only ask bc three weeks ago I brought it into MB for a service and they did my oil but they ended up spilling oil all over the place. They didn't tell me -_- and as I was driving home I smelt burning oil and there was oil leaking from under my car. Sounds like the same thing was happening to you. May not have been an actual leak but just someone else's mistake.
#12
Senior Member
Thread Starter
Join Date: Jan 2009
Location: SoCal
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
C350
Noo I got my oil changed about 9 months ago so no way that was the case, and this is what they wrote on my report: "Expansion plug CK for oil leak found expansion plug leaking. Replace plugs //" They also put that they put in a new air cleanier "Air cleaner, R &R" what is this? Is this my cabin filter or my air fliter for my engine??
#13
Senior Member
Join Date: Oct 2009
Location: MD
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
'09 C350
i agree with Tech.. U should go talk to ur service manager and hopefully he's not an azzhole like my previous one... but talk to him and ask if he can do anything to fix all the problems before your warranty ends
#15
MBWorld Fanatic!
Next time, put your finger in it and smell it, oil and tranny fluid both have a distinct smell to them. Your car has oil, transmission fluid, brake fluid, power steering fluid and it could be either on them. If you can narrow it down, it would help. But the best thing, would be to take it to Mercedes.
Unless you have a lift.
Unless you have a lift.
#17
Funny thing with the leak: bottom plug! Could it be that oil was changed by removing it through the drain plug in the carter, and then the plug and washer were not driven and torqued correctly? There is no need to go that route with Mercedes (see all literature with MB recommended procedures), the oil is pumped up and the whole change is done cleanly under the hood. From a warranty standpoint, there are no other options to change motor oil.
Also, in the 9 months since your last oil change: what oil and filter had you had installed? From color and odor, it seems you put a lot of miles and/or was not extended use 100% synthetic oil to spec 229.5 (e.g. Mobil 1 0W40). Also, filter had also to be polyester, not paper.
Also, in the 9 months since your last oil change: what oil and filter had you had installed? From color and odor, it seems you put a lot of miles and/or was not extended use 100% synthetic oil to spec 229.5 (e.g. Mobil 1 0W40). Also, filter had also to be polyester, not paper.
#18
Senior Member
Thread Starter
Join Date: Jan 2009
Location: SoCal
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
C350
I just used factory oil and filter... and I never changed anything myself, it was all from dealerships... My lease is up in about 6 months, has any1 had this car and put about 70 or 80k miles to see what the reliability is like on W204's??
#19
Noo I got my oil changed about 9 months ago so no way that was the case, and this is what they wrote on my report: "Expansion plug CK for oil leak found expansion plug leaking. Replace plugs //" They also put that they put in a new air cleanier "Air cleaner, R &R" what is this? Is this my cabin filter or my air fliter for my engine??
#21