Psup4s

According to my SA, the cooling system is holding pressure. I read another thread where people were experiencing problems with the epoxy used for holding coolant lines. So far the dealer has been cooperative and willing to fix the issue.
I truly believe if there were more serious underlying issues ie blown head gasket, the techs would pick up on that and of course at that point I would demand a new motor.

I will keep this thread updated in case someone else goes through the same problem.

Thanks

ljpviper

Psups4s, thanks for keeping the thread updated. I bought my car a month ago and put a whopping 240 miles in the month. I too think the coolant smell "should not be normal" my base 997 carrera never smelled of coolant.

I am going to add Gt3 sway bars and spacers in the next couple of weeks. Once on the lift i will inspect the entire system. My buddy who works on my rotaries noticed the smell right away. Me and him will give it a once over and if nothing is leaking i may just drop it at the dealer to get checked. I dont have extended warranty.

I am on the fence about an aftermarket warranty.

Thanks,

Larry

Psup4s

Sounds like a good measure.....gotta keep ur eyes and nostrils opened LOL.
I will update again once i hear back from my dealer. I spoke with the GM today and he's been very helpful so far. I told him about the coolant leak and how its back at the dealer a second time for same issue.
Im sure they will fix it, i just hate not knowing whats going on and having a broken car...... Yeah im OCD

ljpviper

Hey I cant blame you about the OCD, i look at this car as part investment and part fun. I dont like little unknowns when i am driving around.

Its a great car so far, so much better than i expected.

atcbi5

I started smelling mine just recently. It seems to be coming from the top of the oil cooler. I hope I can remove the intake manifold and get access to the oil cooler.

Psup4s

For me i started as coolant smell then drops on floor.
Oiler cooler is where mine was leaking from and dealer had to drop motor. Hopefully you can do it without dropping the motor.

Psup4s

Got a call ftrom my SA just a few min ago. They have checked the car and have not been able to find any leaks. They test pressure the system and checks out ok, reservoir level normal Is it possible there was some left over coolant sitting in a crevice thus dripping and causing the smell?
They will keep the car and keep checking

MK_TT

In my past 996tt I would have that smell from time to time, until I replaced the coolant tank cap, to an updated part number.

I don't know if that your case, but its an easy check.

boxster-r

my 997TT.1 is still a little bit smelling after one front radiator replacement. Porsche say also everything is fine :-( but the car still smells.

Very often the coolant reservoir (see below) in the motor bay is leaky, but only if the engine is hot. Mostly the both water coolant radiators in the front are gone after a few years anyway (only on 996/997TT). Due to the uncleanably spots in the comers behind the front bumper, the radiators become leaky.

Psup4s

Thanks guys will bring this up to my SA and see if they can check reservoir and cap

flyjets

There should be no coolant leaks and no coolant smells what so ever.

I am a very particular person and it fits my job as a test pilot my sensitive nose smelled coolant called dealer and made an appointment. They had the car for 2 days and couldn't find anything.

Sure enough caught a faint smell 4 weeks later called them again. They said let us know if you see anything under it which I didn't. I buy 2 Porsche every 2 years from these guys so they know me very well.

Another month goes by and the plastic coolant pipes on the Cayenne burst. Yes CPO fixed all but my point is you guys are smelling things that are going to fail it's just a matter of time.

If they fail while your driving the Turbo you or the guy behind you might crash. The Glycol is very slippery stuff.

http://www.wheels24.co.za/Multimedia...track-20130722

The 997TT Mezger GT1 cooling block is prone on Modded HP or tracked cars known to fail. As I am sure you have discovered already.

Make them pressure test the system extensively.

BTW this is the reason I am not going to modifying the car with a flash and muffler I fear this might happen to my 997TT.

Ian

Psup4s

The dealer is still checking for leaks, they had the motor out last time also. Once I get it back if anything happens again it will be on them as they had plenty of time to check everything out. I will def keep my eyes and nostrils opened

boxster-r

Engine out? This would be a good day for replacing the clutch. If there is one...

Macster

Unfortunately some leaks do not appear when the engine/cooling system is cold.

One way to get around this is to drive the car around in town until the engine is fully up to temperature. Be sure the A/C is off. Drive the car around until the coolant temperature gage reaches its usual position then drive some more, another 15 minutes or so.

Back home raise the RPMs to over 1K, say 1500 and hold until you or a helper notes the radiator fans come on.

Then shut off the engine.

The heat load of the engine will continue to raise the temperature and pressure of the now hot coolant.

If there are any leaks they'll make themselves known. Ideally you'd like to have the car in the air since from underneath any leak is more readily spotted.

You have to be careful. I did the above to my Boxster and that leaky coolant tank finally gave up and gushed hot coolant to the ground.

To give you an idea of how odd these tank failures can be, after the car cooled down overnight I refilled the coolant tank with water, over a gallon. I then started the engine and drove the car a couple of miles to the dealer. The tank never leaked a drop of fluid. The coolant remained cool and under no pressure.

In the case of my Turbo the driver's side radiator wasn't working right. The engine was running a bit warmer than usual. I had been driving the car around town and had spent previous minutes driving around a parking lot and then shutting off the engine prior to getting my Mom in the car when I caught of whiff of anti-freeze.

What had happened was the engine got hot enough under those conditions that some coolant was forced past the water pump seal and that is from where I caught the smell of anti-freeze.

At the dealer on the lift the tech examined the water pump and found considerable anti-freeze residue build up behind/under the pulley. The thing would leak after I shut off the engine as the hot engine raised the pressure in the cooling system. But because I of course had gone into the house I never smelled any anti-freeze.

Macduff

I'm having the exact same issue in my 997.2 C2S. I had it in a few months ago and they replaced the heater core, smell came back immediately though. No coolant warning light or anything, just the smell. It only smells when the heater is on. My car is under CPO as well and with dealer today for them to check this out. Will post if resolution is reached.