Anyone know about modern Mini's?

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Welly
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Anyone know about modern Mini's?

Post by Welly » Thu Sep 12, 2019 9:00 am

One of my Wife's friends has a 2011 Mini Cooper Petrol (non turbo) and has just spent a fortune on a new timing chain at a Garage.

Now the car is losing water (with no visible leakage) the expansion bottle empties every few days, it's running cold all the time, and the radiator cooling fan is running flat out.

All the hoses to/from the rad are cold, they feel soft not over pressured, there's no sign of water in the oil or vise versa.

She contacted the Garage again and they said it 'might' be the water pump leaking (it wasn't changed with the cam chain but then again I don't think it's driven off the chain).

Have these cars got an electronic thermostat? it might be stuck open hence the cold running. Google suggests a coolant temp sensor which might explain the fan running etc?

Any advice welcome....
Cars in my care:

2005 Volvo S40 T5 German Diesel botherer with new tyre grippage
2010 Citroen C4 1.6 HDi turbo de' explosions, bizarre gearbox model
2010 Renner Twingo refreshingly simple

PeterN
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Location: Charmouth, Dorset

Re: Anyone know about modern Mini's?

Post by PeterN » Thu Sep 12, 2019 9:21 am

If there is no leaking water evident I would strongly suspect the head gasket. Is there any evidence of coolant around the filler cap? You could try putting a receptacle under the end of the overflow pipe and see if coolant is being blown out.

Peter

GingerMagic
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Location: Bournemouth

Re: Anyone know about modern Mini's?

Post by GingerMagic » Thu Sep 12, 2019 11:18 am

Heater matrix?
1999 T4 family wagon
2005 Vauxhall Meriva
1998 406 V6 Coupe - Midlife crisis..!
PP2000 user, can help with faults / diagnostics in the Bournemouth area.

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