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SajStars

Emergency, oil leaking and engine making horrible sound

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Hi, just registered as I am currently stuck in Harrow, London with my CB2000 E39 M5.

 

Car has been running fine, although with a steering pump leak and recently had a new clutch.

 

Drove a mile from the house and an the engine emitted large, concerning, noises and not knowing what to do, I switched it all off.

 

Looking under the bonnet, there seems to be a lot of oil from the passenger side. Coming from the oil filter.

 

What should I do next? Am I going to need a new engine?

 

With kind regards.

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34 minutes ago, SajStars said:

Hi, just registered as I am currently stuck in Harrow, London with my CB2000 E39 M5.

 

Car has been running fine, although with a steering pump leak and recently had a new clutch.

 

Drove a mile from the house and an the engine emitted large, concerning, noises and not knowing what to do, I switched it all off.

 

Looking under the bonnet, there seems to be a lot of oil from the passenger side. Coming from the oil filter.

 

What should I do next? Am I going to need a new engine?

 

With kind regards.

 

a) don't start it; get it recovered to your garage

 

b) check it all under a decent light and see if the oil filter housing is damaged or if the gasket has completely failed

 

When you say it emitted a noise; what was the noise like (metal on metal; dry engine, screeching etc)?

 

Until you know what's going on/what's happened, don't start to think re new engine etc...

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No expert but I would definitely be doing what D_a_n1979 advises: ie getting the car on a trailer to a garage and not running the engine....

 

Is it engine oil?  I had a leak of ATF once and that produced some expensive sounding noises from under the bonnet.  Was a broken AFT reservoir which had nearly drained the power steering. 

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20 minutes ago, SajStars said:

Thanks for the reply. Engine turns over but seems very loud and slow. Very clunky. 

 

DON'T turn the engine over; leave it until it's been properly looked over!

 

Could be all sorts, but could be something serious too!

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Did you check the engine oil level after all this? Was it power steering fluid or engine oil over the filter housings? A power steering pump run dry makes horrendous noises and could add a lot of drag if damaged. If it is engine oil then it will take some work to see how much damage was done, assuming it drained enough to affect oil pressure. Hope this turns out not too bad.

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Check to see if one of the high pressure vanos oil lines has burst. They run at 100+ bar and fire oil out a distance if they let go. It could shoot oil in any direction and would leave the vanos system without pressure. That would result in rough running and loud tapping / rattling noises as the vanos pistons knock against the ends of their cylinders. The oil lines are the braided pipes that come off a metal distribution piece around the centre of the front of the engine above the water pump / thermostat housing. There are three: one to each vanos unit and one to the pressure accumulator to the right of the distribution piece. The distribution piece is the vanos pressure regulator. If it looks like one is leaking be very careful not to get anywhere near these components with the engine running as a leak of oil at that pressure is very hazardous.

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Hi, sorry for lack of updates. I decided to throw my phone at the wall which has ended up with another host of problems.

 

The car. Well got it trailed home and the mechanic ran his diagnostics on it and reported misfire on cylinders 1,3,5.

 

I left it for a day or so and went through a process cleaning it down, topping up the oil and starting it up. The resultry was rough running with a load of oil being burned through the exhaust.

 

I have attached pics and videos. I am hoping someone could advise on next steps.

 

Thank you all.

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What was the oil level before you topped it up? Was it very low? 
 

It is tricky to tell how much oil was coming out by the photographs alone. It might not be related to the main problem unless you have found a major leak.

 

The video sounds grim but phone videos often exaggerate harsh noises. I wouldn’t be running it without at least getting it checked over by someone familiar with the S62. It would be easy to misdiagnose this based on what I can hear in the video. If the sound is metallic harsh rattling at the front then taking the lower oil pan off would be a good way of checking the health of the timing chain guides. They drop dark brown plastic in the sump when they break up. If it is a loud rattling at cylinder head level then take an air intake tube off and look for lots of oil in the plenum. Blocked or badly leaking vanos solenoids can cause too much oil to flow back into their drain tube and it backs up into the plenum causing rough running and oil smoke plus noisy vanos units.

 

Pleae appreciate it is tricky to diagnose these issues remotely.

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Right sorry for the late reply. Had the car taken to BM Sport in Bexley and they did a compression test. Apparently the engine is scrap. image.gif.f13236da8f07ef1d002b20ba012c6752.gif

Not really sure what to do from here. The guy there said he called his breakers and neither have an engine available. So leaves me with little choice. I talked to Dr Vanos and they said the earliest they could do any diagnostics on the car was in Jan...with a rebuild in July.

Any ideas on how to take this forward, ideally do want the car fixed and returned however if it is close to a write off.

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21 hours ago, SajStars said:

Right sorry for the late reply. Had the car taken to BM Sport in Bexley and they did a compression test. Apparently the engine is scrap. image.gif.f13236da8f07ef1d002b20ba012c6752.gif

Not really sure what to do from here. The guy there said he called his breakers and neither have an engine available. So leaves me with little choice. I talked to Dr Vanos and they said the earliest they could do any diagnostics on the car was in Jan...with a rebuild in July.

Any ideas on how to take this forward, ideally do want the car fixed and returned however if it is close to a write off.

 

Source another S62 and drop it in... Just ensure that the S62 you're buying is in good health

 

Or; get yours rebuilt

 

Either way; it's not going to happen quickly, more so with the time of year

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14 hours ago, SajStars said:

Damn it.... clearly a rebuild would be the better option. Let me ask how Dr Vanos will charge. I suspect it will not be cheap.

 

Aren't there other specialists that can do this also?

 

Probably worth asking on the M5Board forum too

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If you do approach people to carry out a rebuild, be very wary of anyone who gives you a price and says it will cost X.  It isn't until the engine is likely removed (itself an expense) and broken down that the true cost of repair will be known, or even if it is repairable.  Go into this with your eyes open.  Only you will know the answer to whether it's worth repairing or not which will depend upon all manner of factors including your emotional attachment (if any) to the car and available funds (it isn't a cheap exercise).  You should factor in a contingency budget for other bits and bobs that will break or need replacement along the way. 

 

It isn't an easy message to type and won't be easy to read but the bottom line is that unless the rest of the car is exceptional (in terms of bodywork, mileage and overall mechanical condition) or you have the knowledge, tools and support network to be able to carry out the work with your own hands then it is unlikely to make any economic sense to repair.

 

Sorry if this appears unduly negative: that's not my intention.  Good luck whatever you decide to do with it.

Edited by JonJon

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On 11/28/2021 at 5:18 PM, d_a_n1979 said:

 

Source another S62 and drop it in... Just ensure that the S62 you're buying is in good health

 

Or; get yours rebuilt

 

Either way; it's not going to happen quickly, more so with the time of year

 

And that's the cut of it. It looks like I can get an engine for £3k. The history will be unknown I am afraid although the guy will give me a 3mth warrenty.

 

It will then require fitting and the garage have quoted £2.5k. so that's £5.5k to get the car back to me. After that it requires a good respray which will cost perhaps £3k.

 

It's going to cost £8k on a 20year old car. I have been offered £3k to sell the car as it is. Which I could use to contribute towards a newer M5. 2014 plate cars are ~£30k.

 

Bit of interesting position to be in and there is no clear way through the mud at this stage.

 

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£3k is high but there are no others. And in fact it was removed for sale today. Which puts me back at square 1.

 

The body has dents and scratches. It was due into the body shop to have everything done.

 

I really don't want to give up. Desperately trying to find a solution.

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Just had a quick peak for cars for sale. I really have seemed to have timed it perfectly as the prices have gone nuts and I now have a broken engine.

 

:)

 

Anyway, it's provisionally booked with MrVanos for an engine rebuild in June 22, depending on availability of parts. It's going to cost a modest 5 digits. 

 

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Hi Sajstars, 

 

It's an unfortunate situation that you're in, I've messaged you on m5board as well - there's some London area based really knowledgeable members around so do get in touch via PM. You may well have some other routes open to you or at least, can begin to research and investigate

 

Cheers, Dennis!

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