In this video I fix a major oil leak on this 2009 BMW 330D E90 fitted with the N57 3.0 straight six diesel engine. This oil leak had been an MOT advisory for several years. The engine under tray had become saturated with oil and this was dripping onto the driveway and leaving oil patches.
I replaced the engine oil filter housing/oil cooler gasket and o-ring, also carrying out a coolant change in the process, using genuine BMW antifreeze concentrate and de-ionised water.
The battery was disconnected as the live (positive) connection to the alternator was removed. This job also involved removal of an intercooler pipe.
The cooling system was bled and the oil level reinstated, using 0.5 litre of 5W30 Quantum oil.
Parts were genuine BMW from the dealership. Prices plus VAT (TAX)
Gasket 11 42 8 513 448 £20.02
O-ring 11 42 8 512 434 £4.02
Antifreeze 1.5 Litre 83 51 5 A6C DD7 £10.61
Cover 51 75 7 140 983 £21.77
Clip 51 75 7 163 899 £1.84
If you enjoy my videos and would like to help support Auto Knight in creating similar content, please click here: https://www.buymeacoffee.com/AutoKnight
Disclaimer - Please be advised that my videos are not instructional and are merely footage of me, with many years of motor trade experience, carrying out vehicle repairs and maintenance. Please conduct your own research, ensure you have the correct tools/necessary expertise and undertake your own due diligence before carrying out vehicle repairs. If in doubt, entrust an automotive technician / car mechanic.