2006 S60 Thermostat Replacement - Is housing replacement req

[cn90]

For those who replaced the Tstat in P2 cars, how long did your factory Tstat last in miles?

[MoVolvos]

For those who replaced the Tstat in P2 cars, how long did your factory Tstat last in miles?

.
Is that even a problem these day? The last time I had to deal with any thermostat was in 2012 on the 98 S70 T5 with 230K miles. Had this minor overheating from Expansion Tank Cap problem, besides needle hitting the red and coming down quickly. For whatever reason I went into the Tstat housing and found none . Put one in and problem solved. Have had a few cars over 200K miles and don't remember having to deal with any.
.

[jonesg]

For those who replaced the Tstat in P2 cars, how long did your factory Tstat last in miles?

230K miles, it failed open,
car would not go above 160 degs F.

[scot850]

I recently replaced a P1 which was a 'good' quality PPS part, hmm. Car has about 180,000 miles on it.

I was advised by a 45 year veteran Volvo foreman, to change the thermostat every 3-4 years along with the coolant. Cheaper insurance that an engine rebuild. Overkill? Possibly.

Neil.

[cn90]

How about coolant reservoir, when does that thing crack?

[MoVolvos]

How about coolant reservoir, when does that thing crack?

.
98 S70 T5 - 230K
03 S80 T6 - 130K
08 C30 T5 - 130K
.

[erikv11]

Thermostats:
07 XC70 green, failed open, 185k
07 XC70 black, not yet, is at 205k
06 S60 R, not yet, is at 186k

Coolant tanks:
07 XC70 green, not yet, is at 194k
07 XC70 black, not yet, is at 205k
06 S60 R, not yet, is at 186k

[jrschwit]

Thermostat:
'02 V702.4T failed open at 230K mi.