Newbie help please. Coolant and heater blower issue

[macjamA3]

New to the forum and new to Audi and require some help. 

Car reaches temp fine after approx 2-3 mile (90 degrees) and sits there firm. 

Heater blows cold all the time. Temp gauge shoots up to the red, alarm bells go off saying check coolant level and switch off engine. 

Switch it off, turn it back on temp reads 90 degrees again, warning goes off, no loss of coolant at all. 

Only had the car a week and it's already doing my head in (new heater motor/resistor, new ignition barrel, radio switches itself on and off, central locking playing up on key) 

So a nice simple fix would be good before I decide it goes back to the dealer permanently.

[Stevey Y]

2 hours ago, macjamA3 said:

New to the forum and new to Audi and require some help. 

Car reaches temp fine after approx 2-3 mile (90 degrees) and sits there firm. 

Heater blows cold all the time. Temp gauge shoots up to the red, alarm bells go off saying check coolant level and switch off engine. 

Switch it off, turn it back on temp reads 90 degrees again, warning goes off, no loss of coolant at all. 

Only had the car a week and it's already doing my head in (new heater motor/resistor, new ignition barrel, radio switches itself on and off, central locking playing up on key) 

So a nice simple fix would be good before I decide it goes back to the dealer permanently.

Hi the heater matrix is possibly blocked or the thermostat is faulty [temp sensor] on the thermostat, I would be taking it back, I hope you didn't pay for all the other parts.

Steve.

[cliffcoggin]

23 hours ago, macjamA3 said:

Only had the car a week and it's already doing my head in (new heater motor/resistor, new ignition barrel, radio switches itself on and off, central locking playing up on key) 

Take it back to the dealer. It may be a simple fix or it may be an expensive one. Either way you should not have to bear the cost.

[saffa]

Hi,did you sort your issue. I have the same problem eith my car

[cliffcoggin]

Marcos.

What was the outcome of your problem? Other forum members have taken the time to offer suggestions, it is polite to make the effort to respond to them.

[macjamA3]

Hi

I sent it back to the dealer I purchased the car from, he replaced the thermostat, cam belt and water pump, heater matrix and it still does it randomly. I suspect its an electrical issue as within seconds the temperature gauge returns to normal temp 

[cliffcoggin]

Thanks for your response Marcos, which may well help others with a similar problem.