[HavnFun328]

I am 3rd owner of an awesome 2003 LMB that I bought in Oct 2012 with ~69K miles, and I've since put 22K on it. I searched for an example that had been well maintained, up to date, and with all records. I am not sorry I did. I just finished an inspection I, and here is a summary of the maintenance that I've done since I took ownership:

• Repaired inside rear view mirror (had glass replaced)
• Replaced front passenger door lock actuator
• Replaced thermostat
• Replaced radiator fluid
• Two oil changes (M1 0W40 #notanotheroilthread)

Inspection I:

• Oil change (M1 0W40)
• 2x Engine air filters
• 2x Cabin air filters
• Flush brake/clutch fluid
• New rear tires
• Replaced Upper PCV hoses

I've done most of the maintenance myself, except the thermostat. I had the local dealer inspect the car and they recommended replacing the PCV hoses. Most of the miles are highway. I plan to replace the transmission and differential oil soon, as that has never been done.

All in all, am extremely happy with this car and I have no doubt it will last a long, long time with reasonable maintenance.

 

[3ltr_mk3]

I see a lot of tstat replacements on this forum. I just got mine and noticed it has trouble keeping normal operating temperature when driving on freeway speeds at below 65 degrees ambient temperature.
I am not sure if coolant temp reading too low or tstat struggling to close.

 

[HavnFun328]

I noticed mine was running cool right away. I was planning to replace the thermostat before it got too cold outside, but it threw a code so I had my Indy do it. Started running in the middle of the range after that, so I concluded it was a bad thermostat.

 

[3ltr_mk3]

Ya I dont see any coolant temp sensor reading concerns on this forum so I think I have a tstat problem. Its now too hot out to test the tstat.
It opens just fine but it has a difficult time to close back up when it needs to.