Quote:
Originally Posted by Bob20124
Question: Is it advisable to be proactive or wait for failure before changing tstat and pump?
Car is 2011 35i 3/10 build date, 65,500 miles. Coolant changed every 3 yrs. Average 5-7Kmi a year.
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That's a tough call. Because these cars will go into limp mode if they overheat, you pretty much can't do any real damage to the engine. I take my car on very long trips and I don't want to get stranded. So for me preventive replacement makes sense. Plus I get to do the work and not pay big bucks at the shop. In general, replace the tstat, pump, rad, expansion tank, belt and tensioners somewhere between 60 and 90k. I did the tstat and pump at 70 and will do the rest next year when I'm due for a coolant flush.
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2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus.
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.