07 S550: thermostat

It's your engine, transmission, driveline
kevm14
Posts: 15750
Joined: Wed Oct 23, 2013 10:28 pm

Re: 07 S550: thermostat

Post by kevm14 »

I should print something yes. I also need to bring in my receipt for the thermostat from Jan actually.
kevm14
Posts: 15750
Joined: Wed Oct 23, 2013 10:28 pm

Re: 07 S550: thermostat

Post by kevm14 »

And they claim it passed the test and they have the printout to prove it. Great. Well that didn't work out the way I had hoped. I'll either wait until it gets worse or just replace it on my own dime.

Picking it up tonight.
rpaoness
Posts: 438
Joined: Tue Jan 27, 2015 5:47 pm

Re: 07 S550: thermostat

Post by rpaoness »

Are they charging you for diag?
kevm14
Posts: 15750
Joined: Wed Oct 23, 2013 10:28 pm

Re: 07 S550: thermostat

Post by kevm14 »

No he said he wouldn't. And no apparent upsell on the state inspection. Given all possibilities I declare this a positive experience. I guess I should wait until I have the car though....
kevm14
Posts: 15750
Joined: Wed Oct 23, 2013 10:28 pm

Re: 07 S550: thermostat

Post by kevm14 »

The results speak for themselves (could not duplicate customer concern). Also it behaved perfectly on the drive home.
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kevm14
Posts: 15750
Joined: Wed Oct 23, 2013 10:28 pm

Re: 07 S550: thermostat

Post by kevm14 »

And it behaved perfectly on the drive in. I think I observed that weather more in the 50F range triggers it. I don't know what that means or if it's anything more than circumstantial.
kevm14
Posts: 15750
Joined: Wed Oct 23, 2013 10:28 pm

Re: 07 S550: thermostat

Post by kevm14 »

I see the needle move occasionally but nothing that I would call abnormal.
kevm14
Posts: 15750
Joined: Wed Oct 23, 2013 10:28 pm

Re: 07 S550: thermostat

Post by kevm14 »

It was fine going to work again. Turned the A/C on to dehumidify.
On the way home, it was warmer, like low 60s, and I used the A/C again. This time I caught the temp needle drift down to 80C and the oil temp got pulled down to like 183F. It should really be 200+ when driving and even over 210 is not abnormal. So 183 is clearly wrong.
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