ilyago
Veteran Member
I am starting a new thread since my problem seems different from the heater core issues.
2015 Passat SE Manual 57K miles
History:
Jan 2016 (11K miles) - I complained to the dealer that my heat is not working as well as it should. Dealer wrote it off that "diesels take longer to warm up". Instead of bringing up the obvious faults in that argument, I decided to get the issue documented and wait until the problem got worse. This was my first winter with this car, so I had no prior experience with its heater.
Nov 2017 (57K miles) - no heat at all. Dealer diagnoses a clogged heater core. Replaces heater core, changes coolant. No TSB or extended warranty for 2015 models. VW corporate refuses to give any assistance. Dealer service manager negotiates with VW, my bill comes to $255 plus tax.
I pick up the car to discover that I am back to low heat, similar to 2016 levels.
Since now the heat issue is in the spotlight, I pursued the matter further. Take the car back next day. Service advisor says that the temperature measured at the vent is "within acceptable" range. I disagree, come back the next day to measure.
I drive the Passat about 15 miles on the highway, water temp gauge is pointing straight up (190?) and oil temp is above 200.
Compared to my 2015 Jetta TDI. I get 160 F with the Jetta, 100 F with the Passat. Service manager gets it to go a little higher by gently revving the engine and observes it changing between 100 - 120 (?) F "due to thermostat opening and closing".
According to the SM, there's no written spec as to what the vent temperature should be - I disagree, I am sure VW has a spec. He tries to explain that the diesel engine computer/thermostat will favor keeping the engine cooler over providing better heat for the passengers, so I am to expect lower heat in a TDI. I question why my Jetta's heat is 60 degrees warmer. He agrees to have a factory rep look at the car next week.
Questions for the forum:
- has anyone else experienced this issue? were you able to resolve the problem?
- if you have a 2015 Passat and you are happy with your heat, please let me know as well
- does anyone know if there's a heating spec for the 2015 Passat TDI SE (manual controls) and what is the temperature range for the spec?
- any ideas on what could be causing this?
2015 Passat SE Manual 57K miles
History:
Jan 2016 (11K miles) - I complained to the dealer that my heat is not working as well as it should. Dealer wrote it off that "diesels take longer to warm up". Instead of bringing up the obvious faults in that argument, I decided to get the issue documented and wait until the problem got worse. This was my first winter with this car, so I had no prior experience with its heater.
Nov 2017 (57K miles) - no heat at all. Dealer diagnoses a clogged heater core. Replaces heater core, changes coolant. No TSB or extended warranty for 2015 models. VW corporate refuses to give any assistance. Dealer service manager negotiates with VW, my bill comes to $255 plus tax.
I pick up the car to discover that I am back to low heat, similar to 2016 levels.
Since now the heat issue is in the spotlight, I pursued the matter further. Take the car back next day. Service advisor says that the temperature measured at the vent is "within acceptable" range. I disagree, come back the next day to measure.
I drive the Passat about 15 miles on the highway, water temp gauge is pointing straight up (190?) and oil temp is above 200.
Compared to my 2015 Jetta TDI. I get 160 F with the Jetta, 100 F with the Passat. Service manager gets it to go a little higher by gently revving the engine and observes it changing between 100 - 120 (?) F "due to thermostat opening and closing".
According to the SM, there's no written spec as to what the vent temperature should be - I disagree, I am sure VW has a spec. He tries to explain that the diesel engine computer/thermostat will favor keeping the engine cooler over providing better heat for the passengers, so I am to expect lower heat in a TDI. I question why my Jetta's heat is 60 degrees warmer. He agrees to have a factory rep look at the car next week.
Questions for the forum:
- has anyone else experienced this issue? were you able to resolve the problem?
- if you have a 2015 Passat and you are happy with your heat, please let me know as well
- does anyone know if there's a heating spec for the 2015 Passat TDI SE (manual controls) and what is the temperature range for the spec?
- any ideas on what could be causing this?