https://volvoforums.com/forum/ en Sun, 17 May 2026 05:20:41 GMT vBulletin 60 https://volvoforums.com/forum/images/kirsch/misc/rss.jpg https://volvoforums.com/forum/ https://volvoforums.com/forum/2001-2013-model-year-xc70-53/can-leaky-washer-fluid-tank-reek-havoc-electrical-system-118188/ Mon, 04 May 2026 18:51:59 GMT I just took my 08 XC70 3.2L in to a mechanic to work on a few different leaks. One of the issues was a slow leak in the washer fluid tank. It would empty about a week after filling it. The mechanic... I just took my 08 XC70 3.2L in to a mechanic to work on a few different leaks. One of the issues was a slow leak in the washer fluid tank. It would empty about a week after filling it. The mechanic said he found the leak and repaired the hoses.
Then, before I left for work, I filled the tank and it all starts pouring over my shoes. The leak is MUCH worse now.
Then I leave for work and I get a check engine light after about 20 minutes.
When I got home, I checked the codes and these are what popped up:

Brake Control Module:
U012900 Engine Control Module lost communication with BCM
U300013 internal failures
U300616 low voltage
U042268 invalid data from Central Electronic Module
Engine Control Module
ECM P227000 O2 Sensor signal stuck lean bank 1, Sensor 2
ECM P227200 O2 Sensor signal stuck lean bank 2, sensor 2

Could these be related? It sure seems like they are linked based on timing, but I'm still just learning about this car.
Any ideas on how to address these codes?

Thanks for any help! ]]> 2001-2013 model year XC70 DM3000 https://volvoforums.com/forum/2001-2013-model-year-xc70-53/can-leaky-washer-fluid-tank-reek-havoc-electrical-system-118188/ https://volvoforums.com/forum/2001-2013-model-year-xc70-53/car-wont-turn-off-key-stuck-position-3-a-118184/ Sat, 02 May 2026 22:14:37 GMT Hello all,

Trying to diagnose daughter's car from afar. She could drive fine, but when she stopped, she could not put car into park or turn the key too the off position. When she tried to put the shifter in park, it sounded like an old fashioned gear grinding (I could hear it over the phone). She was able to drive this way, but the headlights were also out. Dash and hazards still worked. We tried the manual shift lock override in the console under the shift lever, and after fiddling with that, she was able to push the lever to park (it still made the grinding noise) and then the motor immediately stopped, even though the key was in the "on" position. The car is off, but the key is still in the on position, and it will not move. The gear shift now moves freely. Any ideas where to start? ]]> 2001-2013 model year XC70 ihc70 https://volvoforums.com/forum/2001-2013-model-year-xc70-53/car-wont-turn-off-key-stuck-position-3-a-118184/