Which of the following leaks are serious/major?

[Arma 134]

So I had my radiator and water pump replaced in my 520i last month as they were leaking. Also had main drive idler and tensioner replaced at Botany Motorworxx.

I knew there were existing oil leaks, but none of them were major back then (that I knew of). The invoice noted the following leaks and I'm wondering which, if any, of them are major (as in I should get it fixed immediately and shouldn't drive the car). Also wondering if any of them are very expensive repairs, or just fairly cheap and worth getting out the way:

- Rocker cover gasket leaking

- Vanos hose leaking

- Dipstick breather tube leaking

- Possible leak from oil filter remote housing

- Possible leak from sump gasket

Thanks in advance for your wisdom

[Michael. 2313]

To be fair ANY leak is not ideal.

You would be best to resolve all of them.

The vanos one would be my priority, then the rocker cover gasket etc

[Allanw 1071]

I'd do all except the sump. The sump is a total pig of a job, and he only says possible -

the others are likely to leak - fairly common problems, the sump is a rarer issue.

The rocket cover can start to leak onto the exhaust, cuasing burning smells and smoke.

Once the others are done, you may find the sump has nothing wrong. The oil from the oil filter housing gets everywhere - made my sump look quite wet.

[*Glenn* 854]

The rocker cover gasket, vanos hose and oil dipstick breather hose are leaking. They would need replacing, clean off and recheck after a week or so of driving. The remote housing and sump gasket may not be leaking. Dealing with oil leaks.... you start at the top and work down, only replacing what you know or can see is definitely leaking.

Edited May 30, 2013 by *Glenn*

[Arma 134]

Cool, thanks guys.

Will try to get those leaks fixed soon. Hope it doesn't end up costing me an arm and a leg to repair - have replaced so many parts in that 520i now I lost count .

[Etwenty1 45]

So I had my radiator and water pump replaced in my 520i last month as they were leaking. Also had main drive idler and tensioner replaced at Botany Motorworxx.

I knew there were existing oil leaks, but none of them were major back then (that I knew of). The invoice noted the following leaks and I'm wondering which, if any, of them are major (as in I should get it fixed immediately and shouldn't drive the car). Also wondering if any of them are very expensive repairs, or just fairly cheap and worth getting out the way:

- Rocker cover gasket leaking

- Vanos hose leaking

- Dipstick breather tube leaking

- Possible leak from oil filter remote housing

- Possible leak from sump gasket

Thanks in advance for your wisdom

If you are going to put headers on the car leave the rocker cover gasket....the oil leaking down onto the exhaust nuts makes them easier to remove

..when you do replace it watch your bolt torques - some are in inch/lbs.