I've had an epic oil leak for a while now and think I've finally tracked it down. I've just done a load of work on the Disco and noticed that oil was pooling on the lip of the block under the oil cooler with the engine running. I cleaned it up and started the engine again and sure enough there was a dribble of oil running down the block from under the cooler. At least I think it's oil. It's very thin but completely black. Tried to get a picture to see where it's coming from but that's the best I can do. I'm assuming this will be a complete strip down of that side of the engine to remove the cooler? Anyone have experience of this?

FlatbedPilot said:

I'm assuming this will be a complete strip down of that side of the engine to remove the cooler?

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Not easy, you'll have to remove the turbo first iirc, just buy branded gasket, i used THIS

Thanks Sierrafery. I see no evidence of oil in my coolant but I've bought a complete oil cooler repair kit. Might as well do it for all the work involved so hopefully I'll not be doing it again.

While you're at it you'll want the gaskets and O-rings for the two filter housings if they're not included in the oil cooler repair kit.

I have a box full of TD5 gaskets and seals tucked away somewhere. I need to find it and see what I have. Luckily, I'm not in a rush to complete this job so if I don't have what I need I can order at my leisure.