Just bought a 2007 Alhambra... Hot... Overheating in fact.

xs2man

Active Member
Sep 24, 2015
33
0
Yeah, so....

I just bought me a 2007 SEAT Alhambra Reference. 2.0 TDI 140 BHP with, I think, the BRT engine code. Seemed nice enough. Usual battle scars as associated with a car of this age. But nothing terribly untoward.

Took it for a test drive, a decent 10 mins or so, but only around town, as it was in the middle of a city.

Anyway, agreed a price, swapped insurance, and off I went.

Around 10 mins or so after leaving town (around 20-30 mins into driving), I noticed the engine temp rising. So I duly pulled into the side, and popped the bonnet for a look.

No milky oil cap or anything (I did check this before purchase). Coolant level looked good. Fan was going full tilt though. Left it 5 mins, temps returned to the centre ground (circa 90 degrees) and started off again.

It was a good 10-15 minutes later, and everything had been fine. By this time I was on a Dual Carriageway, and doing 70 mph. The temps started to rise again. Rinse, repeat. So I decided to continue my journey at 60 mph to see if that made a difference. I had around 35 miles still to travel to get home by this point.

So I got another 15 miles roughly before there was a coolant warning on my dash this time. Temperatures seemed ok, but I thought I had better pull in anyway. So duly did so. The level this time was below the minimum. I slowly opened the cap, and as the cap opened, the usual bubbling and spluttering happened. Some coolant spilled out, and once settled, the level was below the minimum.

Luckily I had just bought 24 bottles of water, so a top up of 500ml of water, the level was good again, re-attached the cap, and set off again. The last 20 miles or so were fine. No increasing temps, no warnings on the dash, but then not above 60 mph either (in all fairness, a lot of the last bit was on normal A roads with a 60 limit).

So, what is likely to cause this? I have read about the cap not sealing correctly, so I'll give SEAT a call tomorrow and order a new one. I also read about a blockage in some of the pipework causing similar issues. But that was on a 1.9 TDI, not my 2.0 TDI. Regardless, I'll see if I can clean out some pipes and stuff too.

But anyone got any other ideas? Any tests I could do? If a clean and new caps don't solve the problem, I'll probably be sticking her in for a pressure test next I'm thinking.
 

m0rk

sarcasm comes free
Staff member
May 19, 2001
27,787
33
Clanfield, UK
Was the radiator warm to the touch?

Should be, as the rad fans kicked in - but checking the temperature of the pipes is worth a look. That'll tell you if it's flowing through the rad (and engine)

If it's cold, then think thermostat
 

xs2man

Active Member
Sep 24, 2015
33
0
In all honesty, I didn't go about feeling much in there.

Planning on taking her out again tomorrow and see how she performs. Will try some tests assuming it happens again.
 

xs2man

Active Member
Sep 24, 2015
33
0
Ok. So I was out again today in it. Just did a couple 6 mile runs with about an hour in between.

So, on neither run did the temperature rise above 90 degrees. So that is something anyway.

Instead though, the coolant level dropped. So the system must have been pressurised, as when I opened the cap, slowly, the pressure released, and the coolant started to bubble up again, to almost the same point. Not quite though, as I had to top up with around 500ml of water.

There doesn't appear to be any leaks on the underside of the car anyway. And the oil looks clean enough.

I checked the rad fan, and it wasn't on. The radiator itself was cool to the touch. Certainly not hot anyway, but maybe not quite as cold as the air temperature.

The big pipe going into it was warm to the touch, as was the piping going to the coolant bottle (the pipes that T-off into the bottle).

Not sure if that point to the thermostat or not? I'm not a mechanic obviously, lol.
 

xs2man

Active Member
Sep 24, 2015
33
0
Took it to my mechanic, he is thinking head gasket here. Booooo.

So it'll be getting

Head set
Bolts
Water pump
Timing belt kit
Thermostat
Oil
Coolant
All gaskets and seals replaced that are disturbed.

Oh well...
 

xs2man

Active Member
Sep 24, 2015
33
0
Well, that's it all done and back to me. Only done around 20 miles getting it back from the garage, but looks like the head gasket was indeed the culprit. Thankfully.