Undiagnosed Overheating - 2017 passat TDi

[yozzer]

Hi all,

I wonder if you can help me?

I have recently purchased a 67 reg (2017) Passat 2.0 TDI SE Business (148bhp model) ~75k miles

two weeks after purchasing I had an overheating engine warning (all the way around the temp gauge, dash asking me to stop, etc) so I pulled over, allowed the engine to cool, checked I had coolant (I did), and then drove home with the heating on full which kept the temp at the normal level.

I booked it in with my trusted mechanic who diagnosed a head gasket failure, the head gasket was 'fixed' but the issue remains.

He has since gone checking for blockages etc but has still not fixed the issue.

He sent the car to an 'engine specialist' to look at the car and they again have not solved the issue ( I am due to get the proper feedback later today - so I am, as yet, none the wiser as to what they have tried/checked)

Can any of you help me at all?

[Belle427]

Take it back go the original mechanic, give him a slap and tell him to sort it out.

[yozzer]

suspected cracked head, so I am going to see if I can reject the car as the failure happened less than 30 days after purchasing the vehicle!

Fun times

[zedx19]

Why did you not return the car to the supplying dealer for them to fix, if the fault occurred within the first 30 days?

[TonyRPH]

Your mechanic should be carrying out pressure tests.

Not always 100% conclusive, but with the issue you're having I would have thought something would show up.

[DanSkoda]

It'll be the water pump.
Common as muck for it.

[halo34]

If its the electric water pump they stick and overheat the car because there is less capacity until its warm.

Pressure test should of shown that up before progressing.

Not sure if that engine suffers from it but I have had in on another VW engine.