Mini (BMW) oil pressure sender unit?

233sqn · 20 Sep 2013

Hello all

My 2010 Mini Cooper 1.6 petrol, 20K miles has developed a small oil leak. It looks to be coming from a screw in sensor which I assume is an oil pressure sensor, it’s mounted low down on firewall side of the block just above the sump joint, timing belt end of the engine and visible through the offside wheel arch with the wheel off.

It looks pretty difficult to get at as the offside drive shaft passes in front of it.

Please can someone confirm….

Is it the oil pressure sender, or something else?

Is it common to get a leak from them?

Is easy to change or do you have to pull the driveshaft out?

Thanks for your help.

Belle427 · 20 Sep 2013

Earlier minis had it positioned in the oil filter housing which is on the back of the block passenger side as you describe.

Mursal · 20 Sep 2013

Here's a picture of oil pressure sensor, I cant think off any other sensor that would leak oil. Unless you have a separate oil pressure gauge sender, but I don't think so .

http://www.ebay.co.uk/itm/OIL-PRESS...rts_Vehicles_CarParts_SM&hash=item3cd2ffa02a.

Yes they do leak, never changed one sorry

233sqn · 20 Sep 2013

Thanks for the replies. The sensor screws directly into the block, it looks similar to the one in the ebay link but without the long connector part ( it think, I‘ll have a better look!)

Belle427 · 21 Sep 2013

Take a picture and post it up.

233sqn · 21 Sep 2013

Here's a view taken from underneath looking up, timing belt to the right, offside inner CV joint to the top.

Sensor in question is just above sump joint with armoured cable sheath comming out of it.

Any ideas whatt it is?

Belle427 · 22 Sep 2013

I would think its an oil level sensor if its that close to the sump joint.

233sqn · 24 Sep 2013

Apparantly it is an oil regulator solonoid, I went to Mini today and they identified it.

£290 to supply and fit a new one!! And they are regular leakers....

The car is just out of warranty (20 days) but Mini are doing the decent thing and doing it FOC.

Mursal · 24 Sep 2013

Is it?

As long s they fix it on the house, who cares what they call it

Mini (BMW) oil pressure sender unit?

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