How to start rest-mode, engine warm-up
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2008 S211
How to start rest-mode, engine warm-up
Im planning to install engine warm-up system with a 220v hot-frog..
Is there an way to start rest-mode on the HVAC with an relay or something?
Then i don't need to install an additional heatfan.
Is there an way to start rest-mode on the HVAC with an relay or something?
Then i don't need to install an additional heatfan.
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From: V E G A S
1922 Ford Model T / no OBD
Most of US W211 do have the Rest button coming from the factory.
I would guess all W211 are prewired for it, so question is if changing the panel would do the trick, or maybe some additional relay/fuse is needed.
But what you mean by hot-frog? Is it engine heater? Those are low-wattage heaters design to keep engine above freezing. Meaning not much heat available and it takes a lot to warm up the cabin.
I would guess all W211 are prewired for it, so question is if changing the panel would do the trick, or maybe some additional relay/fuse is needed.
But what you mean by hot-frog? Is it engine heater? Those are low-wattage heaters design to keep engine above freezing. Meaning not much heat available and it takes a lot to warm up the cabin.
Thread Starter
Newbie
Joined: Jul 2015
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2008 S211
Can it be programmed with Star, and how to get the 220v system to start the HVAC?
On my old Audi i just had to connect a cable from the 220v relay and to the HVAC-unit.. but that was before CANBUS etc..
Hot-frog is an engine heater, about 1250w.. i don't need a 22c temperature in the cabin, just a few degrees so the snow and ice is easier to get off
On my old Audi i just had to connect a cable from the 220v relay and to the HVAC-unit.. but that was before CANBUS etc..
Hot-frog is an engine heater, about 1250w.. i don't need a 22c temperature in the cabin, just a few degrees so the snow and ice is easier to get off
MBWorld Fanatic!
Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
Knowing the engine would help with ideas?
I assume you are in Europe to have 220V?
Anyway, if you have gasoline engine, they usually don't have heater plugs and even if you have one, I don't think factory heaters are that powerful.
Adding 1250W aftermarket heater might bring some safety concerns and I would be surprised if you notice any difference in cabin temperature when you Rec 10 -20C coolant from the engine.
I would rather think about making safe stand inside the cabin for one of those ceramic heaters.
They cost $29 and not much work involved. Put it on timer to start 20 minutes before you start the car and it should give you what you want.
I assume you are in Europe to have 220V?
Anyway, if you have gasoline engine, they usually don't have heater plugs and even if you have one, I don't think factory heaters are that powerful.
Adding 1250W aftermarket heater might bring some safety concerns and I would be surprised if you notice any difference in cabin temperature when you Rec 10 -20C coolant from the engine.
I would rather think about making safe stand inside the cabin for one of those ceramic heaters.
They cost $29 and not much work involved. Put it on timer to start 20 minutes before you start the car and it should give you what you want.
Last edited by kajtek1; Nov 18, 2015 at 02:52 PM.
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W211 320CDI -04, W210 270CDI -01
Yeah, search Calix or Defa products... they sell 220V engine block heaters and separate cabin heaters up to 1.6kW, which are connected together to one AC power source, in addition defa has 4A or 10A battery triggle charger available which can be integrated.
Or then Thermo-Top is selling coolant hose installation heater with own circulation pump to get engine block heating more evenly. True you won't get cabin warming, but W211 diesels have very effective electric heater in air con duct.
Or then Thermo-Top is selling coolant hose installation heater with own circulation pump to get engine block heating more evenly. True you won't get cabin warming, but W211 diesels have very effective electric heater in air con duct.
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2008 S211
Yes im in Europe, Norway to be specific!....
The 220v installation don't worry me at all because we have DEFA and others suppliers thats selling 220v heaters with enough watt to heat the car...
I just want to get a 12v signal to activate the damn HVAC unit...
My W211 has a 280CDI, V6 190hk, i can install a Webasto (Thermo-top).. but its take a lot of time, and i can only find used parts for the 220cdi engine, the cooling hoses etc are different??
The 220v installation don't worry me at all because we have DEFA and others suppliers thats selling 220v heaters with enough watt to heat the car...
I just want to get a 12v signal to activate the damn HVAC unit...
My W211 has a 280CDI, V6 190hk, i can install a Webasto (Thermo-top).. but its take a lot of time, and i can only find used parts for the 220cdi engine, the cooling hoses etc are different??
