Constantly getting air in coolant

[rj scotty]

ooo a discussion about the water system....

question 234....

You find hard "brown suger" like substance floating in your expansion tank.. what is the likely cause of this?

Mine had this, if its rock solid brown lumps its crystallised coolant caused by leaving it in to long.

Just wash it out and forget about it

[Jamo]

Booked in monday to have a pressure test and HC sniff check.

Wish me luck.

Heater is now just blowing out cold air!

[newsh]

Heater is now just blowing out cold air!

Water level has dropped far enough to get air in the heater circuit, better top it up.

[BrianSmith_S2]

Booked in monday to have a pressure test and HC sniff check.

Wish me luck.

Heater is now just blowing out cold air!

Good luck mate, hope she gets sorted.

Brian

[s2dude]

Water level has dropped far enough to get air in the heater circuit, better top it up.

Far far less likely given current problem but heater matrix could be another reason for this

[Jamo]

Well after the disastrous attempt to get the head gasket checked kind of stumped.

The coolant level looks like it's dropping because its blowing out of the expansion tank cap.

I replaced the cap about 3 months ago with a new one and the tank 4 months ago so dont know if these would be faulty.

Could it be the water pump?

[quattrostyle]

The coolant level looks like it's dropping because its blowing out of the expansion tank cap.

already tried an new expansion tank cap?

[Jamo]

already tried an new expansion tank cap?

Yeah got one from GSF, suppose could buy an Audi one but it aint the cap.

I've tried 4 different ones and used them on the S2 Coupe I had as a secondary test and the Coupe was fine with every cap.

[Jamo]

Car is going into a garage when i can get a booking.

[ross25480]

My 2p Worth

Hey Jamo. Hate to say it but it sounds like you are having exactly the same nightmere as i did with my s2. Mine was running hot and i changed the fan switch water pump and thermostat only to find out that the head had blown. I would say that your head gasket has blown between the cylinder and a water channel just like mine.This in turn pressurises the coolent system with red hot exhast gasses and forces the water out of the expansion tank. This is also why she is running so hot. Dont keep running her hot or else you will warp the head. I had to have 20 thow 0.5 of a mm taken off of mine to get it true again. Its at Tom's as we speak. And yes £500 is the going rate i am sorry to say. Good luck pal and if i were you give tom a ring. PM me if you need his number.

[Jamo]

Hey Jamo. Hate to say it but it sounds like you are having exactly the same nightmere as i did with my s2. Mine was running hot and i changed the fan switch water pump and thermostat only to find out that the head had blown. I would say that your head gasket has blown between the cylinder and a water channel just like mine.This in turn pressurises the coolent system with red hot exhast gasses and forces the water out of the expansion tank. This is also why she is running so hot. Dont keep running her hot or else you will warp the head. I had to have 20 thow 0.5 of a mm taken off of mine to get it true again. Its at Tom's as we speak. And yes £500 is the going rate i am sorry to say. Good luck pal and if i were you give tom a ring. PM me if you need his number.

thanks mate Tom is too far away to get this work done, had quotes from Corey and MRC to get it fixed it's just time to fix it.

Phil2.0 had the same problem and is local to me and has offered some advice so i'll be speaking to him tomorrow before taking a final advice.

It's been doing this since I bought the car on and off, thought it had gone when i replaced the stat and bleed the system.

[Jamo]

O.K the car is booked in next wednesday with the same folks who replaced Phils head gasket. The head will be off to the same specialist to get skimmed.

The key things here for me are the timescales and the fact they are very local to me and have done one before only a few months back.

I was going to have the rods replaced at the same time but I need to keep costs down in reality and it can wait.

Else the car was going to go to Corey or MRC but timescale is a factor.

Not a bill I wanted

Big thanks to Phil2.016v for helping me out

[220bhp]

Any news