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Lupo tdi leaking

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Noticed a small leak after I moved my car off the drive. It's mostly on the drivers side and is rainbow coloured. Any ideas on what it might be? As I won't have time to look myself for a while. TIA

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57 minutes ago, Rich said:

Possibly fuel.

The lines are old now.

It's at the front of the car where would I check for that? Will it be best to Jack the car up or are the hoses accessible from the top of the car 

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Also power steering pump is right at the front or the pipes as well. Noisy pump when steering applied is usually a good clue the pump fluid is low.

But as you appear to have low mpg as well then fuel leak looks likely. (filter, pipes etc)

Edited by Sausage
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4 fluids that are oil based in the engine bay... engine oil, gearbox oil, diesel and power steering fluid.

could be the injector air bleed fuel return, or possibly supply (unlikely). 

Fuel system is pumped in a PD injector engine, so the diesel supply has lowish pressure...? Like @Rich says, check the fuel lines, joins.

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