I like that I can still utilize my Webasto when the fuel tank is near E. With the amount of fuel that it uses I'm not worried about running my tank dry. Temps have plummeted to -20's C here and I have yet to have one cold start on my Cummins this season. I start my engine and it's already at 140-155*F. You can actually feel the heat coming out from the grille if you walk around the front.Did you have any issues when you fired yours up the first time? Finally hooked mine up last night and the 7 day timer will not power up at all The second the power and ground where hooked to the battery the units pump and blower fan kick on but that is all it will do.

Make sure your timer is wired up correctly. You should have 3 wires connected for the timer. A red, black and brown. I believe there is a green as well but you do not use this one. As long as those 3 wires are connected correctly the timer should power up when you connect the main power and ground wires for the Webasto.

You may also need to reset the Webasto, sounds like it may be locked out. If you have the instruction manual that came with the heater check out section 6. This will give you step by step instruction on resetting it. If all of the wiring is good and connected correctly and a reset doesn't work, the control module may be faulty. If you don't have the instruction manual, go here.

If you are a Webasto dealer looking for product specific technical information. MultiControl Operation Manual. Last Updated: 11 February, 2019. Operating Instructions. Installation Instructions. Spare Parts Manual. TSL 17 Installation / Operation Manual. 101 Webasto TSL 17 Coolant Heater.

The unit should not power up when power and ground wires are connected. Unless there is a short in the switch wiring for the switch/timer. Or the timer is faulty. No issues with mine, just had to start it a few times to get fuel to the unit.

I installed a Webasto TSL17 in my B4 Passat and have had it running great for about 2 years now. Recently the unit has not been performing properly. I have not done any changes to the setup, so something has failed and I need some help to identify what. The unit will run the coolant circulation pump, and the combustion chamber fan on high for about one minute and then the unit will just shut off and nothing will be running except the minute count-down on the 7-day timer. The fuel pump is not audibly running during this process.

The fuel pump does pump one time when connected to a 12v source. (I think this is the expected behavior.) The weird thing is that there is a constant 12v coming from the fuel pump wiring harness. I would have expected to see a on/off cycle of current to control the fuel pump. I have reset the unit by pulling the fuse, but the problem persists.

I thought I read a thread on this forum about a unit with similar symptoms, but I cannot find it now and I do not remember the solution. Do any of you Webasto gurus have any suggestions? Blowing the dust off this thread to post the solution so that maybe someone else can benefit.

If you have had a scooter stolen, please post any information you have in order to alert shops and other scooterists of the theft. You may here.

Three years later I finally fixed this by taking the unit apart and scraping the carbon out of the burner assembly. Be careful with the glow plug, scrape out the large deposits with a screwdriver or pick, and be mindful not to scrape the steel wool type substance at the bottom of the burner. I should have just taken it apart 3 years ago, but the voltage at the fuel pump thew me off the trail that it was actually a lack of combustion air to the burn chamber that was the problem. That sounds about right, I found mine would not work one very cold morning, It would start then shut off after a minute or so. Found out that the exhaust out put tube had snow packed up into it. I had backed into the garage the nigth before (There was about a 6 in fresh snow fall) and shoved snow up into the exhaust tube where it froze up that night.

So you will know to check that if it will not start and run correctly. I really miss having it in this 03, if the unit was not so high I would buy another but maybe when I get done remodeling my house I can but another heater. __________________ 2003 Jetta 216 injectors, race pipe, OMI, 2.5 cat back pipe, Sachs power clutch,Lightweight fly wheel,Rocketchip 3.0,Dieselgeek race pipe,Borla SS exhaust,Dieselgeek Intercooler pipes,Pierburg MAF,EU cluster with LED Boost gauge,, Ventectomy,Alientech window,Old Navy ccv filter,Catch can,Dieselgeek short shifter,ATE power slot rotors,Porterfield pads,Shine suspension,Shine rear sway bar,TT pedals & foot rest,Cat fuel filter 2 micron,Alum skid plate,Euro headlights and switch,5 Brake light mod. Blowing the dust off this thread to post the solution so that maybe someone else can benefit. Three years later I finally fixed this by taking the unit apart and scraping the carbon out of the burner assembly. Be careful with the glow plug, scrape out the large deposits with a screwdriver or pick, and be mindful not to scrape the steel wool type substance at the bottom of the burner. I should have just taken it apart 3 years ago, but the voltage at the fuel pump thew me off the trail that it was actually a lack of combustion air to the burn chamber that was the problem.