Losing coolant & split second loss of power

[Trailhead]

Hi all

My A3 2.0 TDI 170 DSG has recently lost power for a split second on a few occasions, say around 500 miles apart.

I've thought nothing of it until now, when I have noticed the engine coolant has gone down by half a litre in a week.

Could these problems be related?

Thanks

[big seedy]

Hi,
I have had a coolant leak issue with my A4 S line 2007. I took it into my local garage to check for leaks but nothing was found. After taking the oil cap off it was evident that the water was travelling through into the oil!! Unfortunately it wasn't the gasket, the head had cracked!! very expensive! I didn't suffer any power loss but if there is water going through the turbo then it cant be good I guess? Hopefully its just a leaky hose??
Pete.

[Trailhead]

Thanks Pete.

It went into the garage today and it's the thermostat housing that's leaking, so a replacement part has been ordered and will be fitted on Tuesday.

I've decided to buy a new A3 now, given the age and mileage of mine, this is probably the beginning of the end!

I hope you get yours sorted as cheaply as possible.

[Mojocvh]

Was just about to post about the "oil cooler". Actually, it starts as an oil heater. Then an oil cooler.they can go porous.

intrigued that you see it as the beginning of the end though.

[Trailhead]

Mojocvh said:

intrigued that you see it as the beginning of the end though.

When cars start to go wrong, they don't stop, IMO.

I've had a few things in the past 12 months - suspension, steering rack end and now this.

I do high miles so it's time to get rid....

[CDP]

Trailhead said:

Mojocvh said:

intrigued that you see it as the beginning of the end though.

When cars start to go wrong, they don't stop, IMO.

I've had a few things in the past 12 months - suspension, steering rack end and now this.

I do high miles so it's time to get rid....

At what mileage? 150K+ ?

[Trailhead]

It was on 97k and its gone now. Bought a new A3 and it is leagues ahead of my old one in every way shape and form. I will post a pic in "show us your audi" now!