Hi

So my Hippo is nearly back together. I'm just putting the bumper and belly pan back on but I have this running out the front next to the radiator but I don't know what it is or where it connects.

Can anyone help please?

Fritz

Oil pressure sensor on front of engine block, on the oil filter housing

Looks a lot like the plug for the ambient air temperature switch if you have a Webasto fbh fitted. Is it a TD4?

Thanks for the tips....fbh is fuel Burning Heater? If so I don't have one (I don't think!!). Yes it's a TD4.

Oil Pressure sensor could well make sense as have had the intercooler etc out and from the description I assume its near to where the hose attaches

Hmm...So...It's not the oil pressure sensor (that's still connected) so I'm none the wiser.

There doesn't seem to be anything local for it to connect to but it is very clean internally so looks like it was connected to something.

Fritz

Just a thought...is it the connector to the air hose at the top just in front of the bonnet stay

Fritz said:

Thanks for the tips....fbh is fuel Burning Heater? If so I don't have one (I don't think!!). Yes it's a TD4.

Oil Pressure sensor could well make sense as have had the intercooler etc out and from the description I assume its near to where the hose attaches

Click to expand...

Yeah FBH is the fuel burning heater. You'll know if you have one if there's a pipe sticking out of the near side bumper area (or if the bumper is still off its situated between bumper "iron" and the front near side wheel.

If you don't have a FBH it could still be the wiring for the sensor (I'm still holding onto that creaking branch), what colours are the wires?

It is for the fuel burner heater. And I think the plug is store on to the black plastic trim that run from top of rad to metal bumper. I have the same plug but no fbh

There will also be two plugs near where the FBH is fitted, and another in the wheel arch by the fuel pump.

It is for the ambient air temp sensor, only used on Td4 models with FBH

Hey guys thanks loads. All back together again now and she runs smoother than ever!!!!

Blown turbo lead to me finding LOTS of other little bits and pieces that needed attention (poor maintenance on my part TBH) so real happy I finally got it all done.

Would I attempt to replace the turbo again without dropping the gearbox & reduction drive?....Well yes I probably would although it isn't as straight forward as some of the guides make it sound and I couldn't recommend it unless like me you lack the confidence to drop the boxes. I'm not a mechanic but I am pretty handy with a set of tools (I'm from an engineering background) and would rate this as advanced DIY. It's not so much the turbo replacement (although it is a little like threading a needle blind folded) but all that goes with it (intercooler; hoses; oil lines; egr; inlet manifold; the list goes on and on). Still if you have a total failure like mine (as opposed to knowing it's on its way out) then I guess it's the only way to be sure the fix is good.

Thanks so much to everyone who helped with advice and encouragement...I couldn't have done it without you all

If anyone is about to attempt this job then please do not hesitate to PM me - there are lots of head scratching moments.

Fritz

P.S. noticed a drop link was on its way out before I dropped it off the stands so that's the next job...although that's going to be like shooting fish in a barrel compared to what I just had to do