Oil and Coolant Loss
 

I know this will have been covered many times before but I have a daft question.

Where am I most likely to be losing coolant and oil from. Car seems to get warm very quickly so I'm planning on bleeding the system after flushing it however I don't want to introduce air in by not looking for leaks.

I turned on the car and let it ideal with the heater running and fan went warp factor 4 so I don't know if this is a problem.

As for the oil, I can see it leaving residue under the exhaust manifold but I can't put my finger on where it's coming from.

If anyone knows of a checklist of things to check it would be appreciated as I'm planning on her first 200mile trip in my stewardship.

I did take a look at the water pump and it looks newish and I did find this sticker so I'm hoping it's already been done.

Cheers

Shaunhttps://uploads.tapatalk-cdn.com/202...cf0311d70e.jpg

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A common place for water loss on the 1.8 is the inlet manifold gasket. Water weeps into the manifold when the engine is cold then burns off when the engine warms up. Clues to this are a rough idle and steamy exhaust on startup until the engine warms up.

Well it certainly has a rough idle, was planning on cleaning the throttle body but I may take a look at this first. Cheers Steve.

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Does the idle settle when the engine warms up, ie once the coolant has burnt off. Another clue is which ever cylinder the coolant ends up in (normally #4) the spark plug will look as if its been steam cleaned!

If its a permanent rough idle it may be the stepper motor needs adjusting but that can't be done without involving a T4, TOAF might do it, I don't know. The stepper motor controls in idle air control valve, adjusts the idle depending on the load on the engine, lights, aircon etc. I bought a 1.8T a long time ago and it had a rough idle. Took it to Brian for a general once over and he'd never seen the stepper motor so far out of adjustment, reckoned it had never been adjusted from new! There is an adjusting screw (dunno where) but needs to T4 to set it within the correct parameters.

It eases off a bit but never fully settles. I'm going to take the rocker cover and head off over the weekend so I'll take a look at the plugs too. Need to track down a slight slip/misfire under hard acceleration too so may be the time to do that. Its never boring with our cars is it.

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Re the misfire under acceleration, what gap are your plugs set to? 1.8s run better with a smaller gap than recommended, 0.7mm seems to be best.

The adjuster screw is covered by a plastic type cover, needs to be pulled off:cool:
You can always try the throttle pressing reset, 5 times with the ignition off.

Couldn't tell you, only had the car since earlier this year and it wasn't due a service until next month meaning I haven't inspected them as of yet.

Cheers

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Throttle pressing reset? I'm intrigued

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Inlet manifold leaks easily on the 1.8T.
That engine is very sensitive to spark plugs.

I would renew both as a first step, before taking the head off.