Just found the cause of a coolant leak which I've been noticing for a few months. Had a small drip on driveway everytime I left the car there, and going through about a litre of coolant every week or two. Investigated and couldn't see leak anywhere, so assumed radiator was on way out.

Anyway the radiator burst last week, so changed it out assuming this is where the leak had been coming from originally. Topped up with water/coolant and ran engine, still a drip from behind radiator (same place as before). After much frustration (took radiator back out and checked all hoses etc.) eventually traced leak to 'transmission cooler plate'. This is the small manifold attached to the gearbox oil cooler. A plastic seam had failed and only leaked a small amount when under pressure, see photo's.

Part number is PCU000140, £18 from main dealer, but have to wait 3-4 days until he gets part from LandRover

MY car is an 02 4.4 HSE


 If you like it, who cares what other people think

Excellent info there, yet another BMW plastic part that fails.

How BMW have a good reputation for reliability I don't know! 

Great info & photys, when weather picks up I will have a nosey.

Adam

How difficult is this to change ? I think mine is possibly leaking from here aswell

Good find - my 2003 4.4 has a loss of coolant that I can't locate - approx 0.5lt every month or so. Will have a look at this part on mine. "On first name terms with my local Dealer......now."

'61 Plate 5.0SC Autobiography - in Black ——— Gone
'53 plate 4.4V8 Vogue Bonatti Grey inside and out. ----- Gone

Same part on TD6 ?? .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

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