Hi everyone,
Currently having a problem with my 2003 318i, which I've only had for about 2 months.
After driving about 1700kms, I generally get a yellow oil light warning and need to top it up by a litre. I am always using 5w-40 LL-01 spec oil for oil change and top ups.
To try and fix this, I've done the following so far:
I've also degreased the engine bay, top and bottom, and have found no leaks from the vacuum pump or rocker cover. The only evidence of a leak is around the sump gasket, but the leak seems fairly minor and isn't even leaving a drop of oil on my driveway ever, so I'm fairly convinced this isn't the course of such drastic oil loss.
So I've pretty much accepted that I'm largely leak free and that the missing oil has to be due to oil consumption. It's worth noting that there is no evidence of any smoke form my exhaust that I can see.
I have spoken to a number of mechanics as well as my local dealer and they are recommending I change oil grade. The dealer reckons they use 10w-30 or 10w-40 for e46's that consume oil, and an indy BMW specialist recommends 20w-50 (Liqui Moly). Another mechanic has recommended trying an additive for valve stem seals.
I realise that worn seals or rings are the most likely cause of the problem, but fixing that will be over double what I paid for the car so not really an option right now. Plenty of searching/reading on this and other e46 forums makes it seem like using thicker oil is not actually a good idea, so I'm kind of stuck with what I should be doing.
Other than this problem, the car runs like a dream - no noise, smooth acceleration and no error lights.
Any ideas to help fix or at least slow down the oil consumption. FWIW, I generally do oil change every 7000 to 10000 kilometres.
Cheers and thanks for any help!
Currently having a problem with my 2003 318i, which I've only had for about 2 months.
After driving about 1700kms, I generally get a yellow oil light warning and need to top it up by a litre. I am always using 5w-40 LL-01 spec oil for oil change and top ups.
To try and fix this, I've done the following so far:
- New CCV and hoses
- New inlet manifold gaskets (done with the CCV of course)
- New oil filter housing gasket
- New VANOS solenoid seals
I've also degreased the engine bay, top and bottom, and have found no leaks from the vacuum pump or rocker cover. The only evidence of a leak is around the sump gasket, but the leak seems fairly minor and isn't even leaving a drop of oil on my driveway ever, so I'm fairly convinced this isn't the course of such drastic oil loss.
So I've pretty much accepted that I'm largely leak free and that the missing oil has to be due to oil consumption. It's worth noting that there is no evidence of any smoke form my exhaust that I can see.
I have spoken to a number of mechanics as well as my local dealer and they are recommending I change oil grade. The dealer reckons they use 10w-30 or 10w-40 for e46's that consume oil, and an indy BMW specialist recommends 20w-50 (Liqui Moly). Another mechanic has recommended trying an additive for valve stem seals.
I realise that worn seals or rings are the most likely cause of the problem, but fixing that will be over double what I paid for the car so not really an option right now. Plenty of searching/reading on this and other e46 forums makes it seem like using thicker oil is not actually a good idea, so I'm kind of stuck with what I should be doing.
Other than this problem, the car runs like a dream - no noise, smooth acceleration and no error lights.
Any ideas to help fix or at least slow down the oil consumption. FWIW, I generally do oil change every 7000 to 10000 kilometres.
Cheers and thanks for any help!
318i Oil Consumption
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