V40 D3 2.0 diesel (2014) unexplained coolant leak

VolvoDID · Jul 7th, 2024, 11:40

hi, I have a 2014 v40 d3 with 59,500 miles on the clock . There is an ongoing issue with a coolant leak, after 5 visits to 2 separate garages, no closer to finding cause.
I get a message ‘heavy load, shift down’ after 30 miles of driving, then a warning that engine temp is high and to reduce speed, then ‘engine temp high stop safely’, then ‘coolant level low’ message. Once I stop, engine gets even hotter. Coolant level goes from max to below min after every journey of 30 miles. No evidence of a leak on ground or in engine area. Cap on reservoir has been replaced twice & cam belt & water pump replaced about a month ago (incidentally, these issues started shortly after this) Garages have bled the system & done a pressure test plus other checks, unsure exactly what (sorry for lack of tech info,complete car maintenace novice). Got car back again from garage on Friday with second new reservoir cap (official Volvo one as previous was generic) got 35miles & only message I got was ‘coolant level low stop safely’ which briefly flashed up & that was it. Once home, engine was cool but checked after an hour & it was hot & the coolant was below min. Have checked this morning and it is still at the same level. No other symptoms, head gasket testing points to no issues there. Anyone experienced this or have any suggestions please? I have several long distance journeys coming up and currently will not be able to rely on my car for these. Thank you.

GrahamBrown1 · Jul 7th, 2024, 13:59

See reply on your other post

Jul 7th, 2024, 11:40	#1
VolvoDID Becky Last Online: Jul 10th, 2024 12:47 Join Date: Jul 2024 Location: Ely	V40 D3 2.0 diesel (2014) unexplained coolant leak hi, I have a 2014 v40 d3 with 59,500 miles on the clock . There is an ongoing issue with a coolant leak, after 5 visits to 2 separate garages, no closer to finding cause. I get a message ‘heavy load, shift down’ after 30 miles of driving, then a warning that engine temp is high and to reduce speed, then ‘engine temp high stop safely’, then ‘coolant level low’ message. Once I stop, engine gets even hotter. Coolant level goes from max to below min after every journey of 30 miles. No evidence of a leak on ground or in engine area. Cap on reservoir has been replaced twice & cam belt & water pump replaced about a month ago (incidentally, these issues started shortly after this) Garages have bled the system & done a pressure test plus other checks, unsure exactly what (sorry for lack of tech info,complete car maintenace novice). Got car back again from garage on Friday with second new reservoir cap (official Volvo one as previous was generic) got 35miles & only message I got was ‘coolant level low stop safely’ which briefly flashed up & that was it. Once home, engine was cool but checked after an hour & it was hot & the coolant was below min. Have checked this morning and it is still at the same level. No other symptoms, head gasket testing points to no issues there. Anyone experienced this or have any suggestions please? I have several long distance journeys coming up and currently will not be able to rely on my car for these. Thank you.

Jul 7th, 2024, 13:59	#2
GrahamBrown1 Register Keeper - S80, P2, and P3 Last Online: Yesterday 08:37 Join Date: Feb 2013 Location: North Yorkshire	See reply on your other post __________________ Previous -03 S40, 04 V70 D5, 04 V70 D5 Sport, 05 V50, 07 S60 D5, 09 V70 D5 R design, 12 XC60 DrivE, 15 V60 D3 VEA Current- 05 XC90 D5 Exec, 12 XC70 D4 AWD Se Lux, 14 S80 D3 Se Lux

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