Jump to content
Johnny 5C

1999 318i Oil Leak

Recommended Posts

So after 3 months of owning my car I finally got around to changing the oil at the weekend. (not that it was due, just wasn’t sure if the garage I bought it from had changed it. Just establishing a baseline with some good stuff)

I couldn’t get the oil filter cover off, but still changed out the oil. Is it possible to drop in a new oil filter without draining the oil? Something tells me it might be possible….

Anyhoo, I have posted before about an oil leak, so while I was under there I thought I’d do some investigation and take some photos. I gave it a good clean too….

Note the drips of oil on the bolts….

There was a lot of oil on the engine tray, but I couldn’t find a definite trail. There was some around the oil filter, but not loads. The hoses in pic 3 are towards the rear of the engine. It looks like oil has been blown back by the wind onto the exhaust and cat etc. One thing to note is this car had an expansion tank let go in its history. Could this be linked? Now I have had a clean I will get under for another look after a week.

Still sounded a bit tappety after the change…..

Cheers

John

post-12180-0-05823200-1312804147_thumb.j

post-12180-0-27754500-1312804163_thumb.j

post-12180-0-40553700-1312804189_thumb.j

Link to comment
Share on other sites

Is it possible to drop in a new oil filter without draining the oil? Something tells me it might be possible….

Yes, it is possible to change the filter without draining the oil.

Not sure about the leak, but it looks like you could do with a new serpentine belt. Horrible cracks in the existing one. If it breaks, your water pump, power steering pump and alternator will all stop working.

Ian.

Link to comment
Share on other sites

Appreciate the heads up on the serpentine belt. Any idea (ballpark) how much im looking at?

So this could be PS fluid not engine oil? Interesting the oil level has been perfect, just horrible and black. Now its better and I'm happier. I'd have thought a BMW engine with 74K would have responded better to the new oil though. Sounding tappety and the idle is all over the place. Could the ECU be responding to the change in oil viscosity?

John

Link to comment
Share on other sites

Really depends what oil you have put in it tbh, and the overall condition of the engine. I doubt the ECU would recognise the change in viscosity though, if its tapping you probably have a sticky lifter. Not really something to worry about.

Link to comment
Share on other sites

Hi i have the same engine fitted to my 318ci coupe. When i first gotn the car i had a slight oil leak from my oil filter housing. Changed the gasket and both rubber seals on the bush inside the housing and doesnt use a drop now :)

Hope that helps, read on here that its quite a common problem :)

Link to comment
Share on other sites

Hi. I would start with changing the Oil Filter Housing Gasket. The parts are less than a tenner from the dealer.

You can get one of these- http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_199193_categoryId_165469_langId_-1?cm_sp=Intelligent_Offer-_-Product_List_Zone_1-_-Blank&iozone=PLPz1 for changing the oil filter.

You may need a new Oil Spray Bar, part No's11/12- http://www.realoem.com/bmw/showparts.do?model=AL32&mospid=47631&btnr=11_2061&hg=11&fg=25 . Tappit noise maybe blocked pipe causing oil starvation. Jim

Link to comment
Share on other sites

This place is awesome.

I assume the Oil filter housing gasket is where i have marked on the attached? Just remove the bots whip it off replace the gasket and bolt back on?

How easy is the oil spray bar to change? I guess its just accessed from under the rocker cover? This assumes a blockage in the spray bar/hollow bolt.. A job to keep on the back burner.

Off ot get a cup wrench on the way home tonight! Cheers!

post-12180-0-28733300-1312881091_thumb.j

Link to comment
Share on other sites

Yeah the bolts you circled are the ones u need to remove but there's some the other side too :)

You need to remove the airbox, alternator, power steering pump pullet too B) Not a hard job tbh if you have the tools B)

If you're gonna do the gasket change the 2 rubber o rings that go in the bush, on mine it was leaking there m ore then the gasket

Good luck!

Link to comment
Share on other sites

Hi. As already said things to remove-

Alternator and belt

Belt tensioner

Airbox

Unbolt power steering tank to move out the way

Take lid off oil filter housing to let oil drain to sump

After that its plain sailing, mind and clean off old gasket.

Try an engine flush, I used cheap supermarket diesel engine oil . Jim

Link to comment
Share on other sites

Got a quote for the aux belt, so Im going to get that done (£55)

I think I will do the gasket myself, sometime soon.

Picket up a cup wrench last night and swapped out the filter. Very easy 10 minute job. Also included the rubber seals.

So this engine flush? You put in cheap supermarket diesel oil and then what? run the engine for a while and then replace? Do you add any additive? I'd really like to be rid of the horrible old oil, so it doesn’t contaminate the new stuff.

Wife reports car running nicely now and sounding good. She thinks there is a blow in the exhaust now......

Thanks all!!!

Link to comment
Share on other sites

Id say if your handy enough to do the seals on your oil filter housing, your certainly capable of doing the aux belt. You can pick them up for about £15 from GSF or ECP, its then about 2 minutes work and probably only a 15mm spanner to change it!

Link to comment
Share on other sites

Got me thinking now.

I did the alternator belt on my old AX, but that was a simple belt. My aux belt snakes every where but its just as simple right? Just loosen off the alternator, remove belt and replace?

Any info on the engine flush would be good too. Im off on holiday to France soon and want to be sure my car is tip top.

Cheers

John

Link to comment
Share on other sites

Hi. Make a note off how the belt winds round the pulleys then take the pressure off the tensioner and the belt comes off.

Oil flush is easy enough, drain old oil and change the filter add cheap oil then run for a day then change to correct oil. Jim

Link to comment
Share on other sites

Thanks Guys. Going to do this myself. Is there two belts? Cracked one appears to be behind another?

Going to check my local Halfords for the belt. If they have one, I’m doing this tonight. Might take some pictures and do a DIY guide?

I love it when I have a car I can DIY on. Still got remnants of oil under my nails, and wouldn’t have it any other way.

Suspect my neighbours are going to ask me to do simple servicing on their cars. It’s amazing how many people were surprised to see me out in the street with the bonnet up. The old man across the street went out of his way to com over and ask what I was doing. He was surprised to hear I was changing the oil on a Beemer... Thought it wasn’t possible except for an experienced mechanic....

Have to admit I do love the German engineering so far. Everything has been so accessible and strait forward. Just removing the engine tray was easy.

Captive screws and it just slots out. Had to remove half the bumper on my Volvo to do the same... Feel I know my car a little better now!

Link to comment
Share on other sites

Yeah there are 2 auxiliary belts, both are pretty much the same method of removal.

Have a quick google search and there is likely to be a diy on it somewhere. IIRC one of the tensioners has a plastic cover which you have to pop of to access the bolt that releases the tension.

Link to comment
Share on other sites

Jim, I will be sure to check that. I'm not losing any coolant (as far as im aware) but while im under the bonnet...

Looking at my pictures, it looks like the one nearest the front is OK. Just the one to the rear that is cracked. Hope the part from ECP is the right one, as Im off to get one now to fit tonight. There are three different types on the website.... all continental, different prices, same write up....I will take the photo with me.... Just whip the old one off and compare with the new…

Googling a write up as we speak.

Seriously, thanks for the support and assistance...

Edited by Johnny 5C
Link to comment
Share on other sites

Did my aux belt last night.

I was able to lever the tensioners back with a ring spanner enough to slip the belts on and off. Very easy. I was expecting to have to take the pulleys off, or at least loosen them.

I have attached a picture showing the oil leak from the filter housing. It was very evident after I cleaned the whole area last weekend. That’s the next job. I guess a few things will have to be stripped back to get access, but I’m on a roll....

It seems to be coming from in the cavity I have marked with an arrow...

Thanks

John

post-12180-0-10961300-1313048339_thumb.j

Link to comment
Share on other sites

I did my oil filter housing gasket and one way valve yesterday. All looking good so far. Had a real good clean up with de-greaser and the engine now looks much better.

The job wasn’t too difficult, once I had worked out what had to come off first. The alternator was a bit stubborn, and took some persuasion to come off. The bushes to the rear had corroded quite badly, and i couldn’t wind them back at all, even with the alternator out of the engine. (Took a rubber mallet to get it back on)

It had (has) a real rough idle now though, the same as when I changed the oil over a few weeks ago. Just hoping that it settles down. Was almost going to stall a few times, which isn’t what I’d expected, and the other half is not impressed, but hopefully it will correct with time. The battery was disconnected for 3 hours.

Got a long drive in Europe soon, want to get it all sorted before i go.

Which reminds me, is is simple to switch the (OEM) headlight beams over for European roads? I have googled, but it seems that I'm the only E46 without Angel Eyes or Xenons... (Actually, i assume i haven’t got xenon)

Given my experience so far, BMW will have made it simple, right.? Really don’t want the stick on jobs.....

Cheers

John

Edited by Johnny 5C
Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now


×
×
  • Create New...