Below is a message I sent to my Volvo dealer along with pictures of the dash (did not attach pics but could if you want them) documenting an issue with my car warming up slowly when the temperature gets down around 0F. The car is a 2011 S40 with the T5 engine. The dealer confirmed that the issue I describe is happening but say they checked another 2011 S40 they had on the lot and it did the same thing. I find it really strange that it takes 20 min plus on the highway to reach operating temperature and that if you stop and run the heater at full the engine temperature drops. They gave me an 2013 S60 with the T5 engine while my car was in the shop over night and on my drive to work with temperatures below 0 this car was up to operating temperature within 5 minutes. They stated that the T5 engine in the S60 is a “different”…looked the same to me.
“When I drove my S40, with the heat on full trying to defrost it, after its visit to your shop for the throttle body replacement the temperature issue really showed up . Attached 5 pictures of the dash tell the story about the heat/thermostat not working properly:
- Start home see time/miles
- 7 miles 13 minutes car not up to temp, still running heat high
- Sat running in driveway for another 10 min, still not up to temp
- Turn off heat and let run for another 5 min, comes up to normal temp.
- Turn heat back on (air now much warmer than before) engine temp drops again
I know you tested it and did not see an issue but did you test it out in the cold or in the shop? This is only really noticeable during cold spells like we have been having. Driving the S60 with the exact same engine showed me the warm up time is NOT normal. I’m worried that driving the car while cold all the time is going to damage it/ cause engine wear.
Pls discuss with your service guy and let me know what can be done (weak thermostat??)”
Dealers recommendation is to put a block heater in it………
Please give me your opinion on this issue.
I have put duct tape over the grill in front of the radiator to see if this will help….car is silver so it doesn’t look schlocky as it sounds :o)