MQB Webasto or Eberspächer parking heater retrofit - Revision history

Mr-fix: /* Remote pairinghttps://forums.ross-tech.com/index.php?threads/16109/#post-144573 */

2026-05-19T06:09:11Z

Remote pairinghttps://forums.ross-tech.com/index.php?threads/16109/#post-144573

← Older revision		Revision as of 08:09, 19 May 2026
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	=== Remote pairing<ref>https://forums.ross-tech.com/index.php?threads/16109/#post-144573</ref> ===		=== Remote pairing<ref>https://forums.ross-tech.com/index.php?threads/16109/#post-144573</ref> ===
	Heater (0x18) → Basic settings → Adapting RF transmitter (IDE06650) → Go!		Heater (0x18) → Basic settings → Adapting RF transmitter (IDE06650) → Go!
	//now press and hold the OFF button (two button remote without display)		// now press and hold the OFF button (two button remote without display)
	//or the heating button (four button remote with display).		// or the heating button (four button remote with display).

	Alternative method allows to pair the remote without diagnostic interface. Disconnect the Telestart module, reconnect it, and press&hold the OFF button on the remote.		Alternative method allows to pair the remote without diagnostic interface. Disconnect the Telestart module, reconnect it, and press&hold the OFF button on the remote.

Mr-fix: /* Coding & Adaptation */

2026-05-19T06:08:55Z

Coding & Adaptation

Mr-fix: /* Costs */

2026-05-11T10:03:30Z

Costs

← Older revision		Revision as of 12:03, 11 May 2026
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	* Fuel line + quick release connectors = 50 PLN (new, AliExpress)		* Fuel line + quick release connectors = 50 PLN (new, AliExpress)
	* Exhaust muffler + exhasut flex pipe = 30 PLN (new, AliExpress)		* Exhaust muffler + exhasut flex pipe = 30 PLN (new, AliExpress)
			* Exhaust insulation fiberglass foil (60cm) = 20 PLN (new, AliExpress)
	* Universal coolant hose (20mm inner diameter) = 35PLN (new)		* Universal coolant hose (20mm inner diameter) = 35PLN (new)

	Total: ~~1675PLN~~		Total: 1695PLN

	== Research & Reference ==		== Research & Reference ==

Mr-fix at 09:56, 11 May 2026

2026-05-11T09:56:40Z

← Older revision		Revision as of 11:56, 11 May 2026
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	* Auxiliary heater (help warm up the engine faster while engine is working)		* Auxiliary heater (help warm up the engine faster while engine is working)

	It can also be used to ventilate the car when it's hot~~. Not sure if the logic behind this feature is in the heater module or in Climatronic itself~~.		It can also be used to ventilate the car when it's hot inside.

	Research		Research
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	Webasto aux heater system contains couple elements:		Webasto aux heater system contains couple elements:
	* Webasto heater unit with ~~water~~ circulation pump, exhaust, and intake		* Webasto heater unit with coolant circulation pump, exhaust, and intake silencer
	* fuel dosing pump with fuel lines		* fuel dosing pump with fuel lines
	* ~~water~~ hoses		* coolant lines and hoses
	* wiring harness		* wiring harness
	* remote start receiver with antenna		* remote start receiver with antenna
	* remote control		* remote control

	Webasto unit communicates with related modules like infotainment unit (Audi MMI, VW Discover, Seat Navi...), HVAC (Climatronic). It will ~~also checks~~ ambient temperature, car battery charge, and car fuel level~~, ambient temperature~~.		Webasto unit communicates with related modules like infotainment unit (Audi MMI, VW Discover, Seat Navi...), HVAC (Climatronic), engine control unit, body control unit. It will check ambient temperature, car battery charge, and car fuel level.

	== Parts ==		== Parts ==
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	[[File:Audi-S3-8V-extra-radiator.png\|thumb\|alt=Audi S3 (8V) 2.0TFSI extra radiator on the right side\|Audi S3 (8V) 2.0TFSI extra radiator on the right side]]		[[File:Audi-S3-8V-extra-radiator.png\|thumb\|alt=Audi S3 (8V) 2.0TFSI extra radiator on the right side\|Audi S3 (8V) 2.0TFSI extra radiator on the right side]]

	Note: no option for Audi S3 and Audi RS3. The radiator on the right side is taking the space that normally would be available for the Webasto unit. Also the washer fluid reservoir is relocated to the right side of the vehicle, which obstructs the path for water hoses. In case of Audi RS3, you have some room in the engine bay, because the 12V battery is relocated to the trunk. In case of Audi S3, you can use an aftermarket cold-air intake system for your engine, and use some of the space from the OEM air box to fit the Webasto unit. Other option is to remove the upper part of the washer fluid reservoir (it splits into two parts) and install the Webasto unit there.		Note: no option for Audi S3 / Golf MK7 R and Audi RS3. The additional radiator on the right side is taking the space that normally would be available for the Webasto unit. Also the washer fluid reservoir in S3 / MK7 R is relocated to the right side of the vehicle, which obstructs the path for water hoses. In case of Audi RS3, you have some room in the engine bay, because the 12V battery is relocated to the trunk. In case of Audi S3 / MK7 R, you can use an aftermarket cold-air intake system for your engine, and use some of the space from the OEM air box to fit the Webasto unit. Other option is to remove the upper part of the washer fluid reservoir (it splits into two parts) and install the Webasto unit there.

			I managed to squeeze the Webasto heater under the the OEM air box. There's just enough room over there for the heater alone.

	=== Webasto Heater ===		=== Webasto Heater ===

Mr-fix at 11:22, 8 February 2026

2026-02-08T11:22:18Z

← Older revision		Revision as of 13:22, 8 February 2026
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	Webasto has two main functions:		Webasto has two main functions:
	* Parking heater (warm up the ~~engine and~~ cabin before starting the engine)		* Parking heater (warm up the cabin before starting the engine)
	* Auxiliary heater (help warm up the engine faster while engine is working)		* Auxiliary heater (help warm up the engine faster while engine is working)

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	* remote control		* remote control

	Webasto unit communicates with related modules like infotainment unit (Audi MMI, VW Discover, Seat Navi...) ~~and~~ HVAC (Climatronic). It will also ~~check~~ ambient temperature, car battery charge, and car fuel level.		Webasto unit communicates with related modules like infotainment unit (Audi MMI, VW Discover, Seat Navi...), HVAC (Climatronic). It will also checks ambient temperature, car battery charge, and car fuel level, ambient temperature.

	== Parts ==		== Parts ==
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	* <code>8V0-054-965-E</code> - 1.0, 1.4, 1.5 TFSI, front-wheel drive (PR-1X0)		* <code>8V0-054-965-E</code> - 1.0, 1.4, 1.5 TFSI, front-wheel drive (PR-1X0)

	~~Note: no~~ option for ~~Audi S3~~ and ~~Audi RS3~~.		I can't see an option for 1.8 TFSI, but I assume that it will be the same as for 2.0 TFSI, since both engines are from [[EA888.3]] family and share most of the components.

	~~I can't see an~~ option for 1.~~8 TFSI, but I assume~~ that ~~it will~~ be the ~~same as~~ for 2.~~0 TFSI~~, ~~since both engines are~~ from ~~[[EA888~~.~~3]] family~~ and ~~share a lot of components~~.		[[File:Audi-S3-8V-extra-radiator.png\|thumb\|alt=Audi S3 (8V) 2.0TFSI extra radiator on the right side\|Audi S3 (8V) 2.0TFSI extra radiator on the right side]]

			Note: no option for Audi S3 and Audi RS3. The radiator on the right side is taking the space that normally would be available for the Webasto unit. Also the washer fluid reservoir is relocated to the right side of the vehicle, which obstructs the path for water hoses. In case of Audi RS3, you have some room in the engine bay, because the 12V battery is relocated to the trunk. In case of Audi S3, you can use an aftermarket cold-air intake system for your engine, and use some of the space from the OEM air box to fit the Webasto unit. Other option is to remove the upper part of the washer fluid reservoir (it splits into two parts) and install the Webasto unit there.

	=== Webasto Heater ===		=== Webasto Heater ===
	~~[[File:Audi-S3-8V-extra-radiator.png\|thumb\|alt=Audi S3 (8V) 2.0TFSI extra radiator on the right side\|Audi S3 (8V) 2.0TFSI extra radiator on the right side]]~~

	There are two versions of the Webasto Thermo Top Evo heater unit:		There are two versions of the Webasto Thermo Top Evo heater unit:
	* Diesel (Thermo Top Evo D)		* Diesel (Thermo Top Evo D)
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	There's a fakra connector on the Telestart module. If Audi A3 is factory fitted with Webasto, module is connected with the roof antenna module. For retrofit there's an additional antenna that you can stick to the cars body.		There's a fakra connector on the Telestart module. If Audi A3 is factory fitted with Webasto, module is connected with the roof antenna module. For retrofit there's an additional antenna that you can stick to the cars body.

	~~I will also try to use a~~ generic antenna from AliExpress, just ~~to see if I can pair the remote with it~~. If there's a change of accessing bottom the OEM roof antenna, I would love to wire the module to it. I believe the roof antenna will provide better signal and higher remote range.		Cheap generic antenna from AliExpress works just fine. If there's a change of accessing bottom the OEM roof antenna, I would love to wire the module to it. I believe the roof antenna will provide better signal and higher remote range.

	=== Remote ===		=== Remote ===
	There's couple of remotes that you can use. Of course Audi has the coolest one, with the display. ~~But I believe other~~ remotes (VW, Skoda...) ~~should also work~~, ~~since the heater module is the same for those cars~~.		There's couple of remotes that you can use. Of course Audi/Porsche/Bentley has the coolest one, with the display and more options. Other remotes (VW, Skoda, Seat...) are simpler, with just two buttons, no display, and status indicator LED.
	* <code>4N0-963-511</code> - Audi, two buttons		* <code>4N0-963-511</code> - Audi, two buttons
	* <code>4H0-963-511-A/B</code> - Audi, 4 buttons, red backlight ([[Eberspächer EasyStart R+]])		* <code>4H0-963-511-A/B</code> - Audi, 4 buttons, red backlight ([[Eberspächer EasyStart R+]])
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	Paid ~€50 for it. And it contains a lot of little things that I believe will be necessary during the installation.		Paid ~€50 for it. And it contains a lot of little things that I believe will be necessary during the installation.

	=== Fuel ~~lines~~ and ~~pump~~ ===		=== Fuel pump and fuel line ===
			OEM fuel tank pump assembly is prepared to connect additional line to it. Also the fuel tank is equipped with a small hanger on the side to install the webasto fuel pump.

			Fuel line needs to be guided through, all the way to the engine bay.

	=== Coolant pipes ===		=== Coolant pipes ===
			If installing in unsupported vehicle, you will need a generic silicone hose, 20mm inner diameter.

	== Installation ==		== Installation ==
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	* https://pim.audi.com/pdf/EBA/EBA_8V0054960B_en_190315.pdf		* https://pim.audi.com/pdf/EBA/EBA_8V0054960B_en_190315.pdf

	~~There's no official tutorial nor parts for Audi S3 and Audi RS3. Most likely this is caused by the two additional radiators and other changes in those high-power variants.~~		When it comes to fitting Webasto unit into Audi S3, I had to remove the units exhaust, units intake, circulation pump, and both mounting brackets. Webasto unit alone has a compact shape and fits under the OEM air filter box. It will also require to use an universal exhaust once the unit is mounted and some modifications for fuel line and wiring.

	The radiator on the right side is taking the space that normally would be available for the Webasto unit. Also the washer fluid reservoir is relocated to the right side of the vehicle, which obstructs the path for water hoses.

	~~In case of Audi RS3, you have some room in the engine bay, because the 12V battery is relocated to the trunk.~~

	In case of Audi S3, you can use an aftermarket cold-air intake system for your engine, and use some of the space from the OEM air box to fit the Webasto unit. Other option is to remove the upper part of the washer fluid reservoir (it splits into two parts) and install the Webasto unit there.

	When it comes to fitting Webasto unit into Audi S3, I had to remove the units exhaust, units intake, circulation pump, and both mounting brackets. Webasto unit alone has a compact shape and ~~will most likely fit~~ under the OEM air filter box. It will also require to use an universal exhaust once the unit is mounted and some modifications for fuel line and wiring.

	~~''TBC''~~

	== Coding & Adaptation ==		== Coding & Adaptation ==

Mr-fix: /* Gateway */

2026-02-08T11:02:06Z

Gateway

← Older revision		Revision as of 13:02, 8 February 2026
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	Gateway (0x19) → Adaptation → Installation list → (Auxiliary Parking Heater) Node 0x6A → coded		Gateway (0x19) → Adaptation → Installation list → (Auxiliary Parking Heater) Node 0x6A → coded

	//Let know the Efficiency Board Computer to calculate its thing with the park heater in mind		//Let know the Efficiency Board Computer to calculate its thing
			//with the park heater in mind. Most likely this also adds
			//the parking heater to the fuel efficiency live tips
	Gateway (0x19) → Long Coding → Byte:13 → Bit: 2 (BCmE Standheizungsberechnung) → Active		Gateway (0x19) → Long Coding → Byte:13 → Bit: 2 (BCmE Standheizungsberechnung) → Active

Mr-fix: /* Remote pairinghttps://forums.ross-tech.com/index.php?threads/16109/#post-144573 */

2026-02-01T18:06:25Z

Remote pairinghttps://forums.ross-tech.com/index.php?threads/16109/#post-144573

← Older revision		Revision as of 20:06, 1 February 2026
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	//now press and hold the OFF button (two button remote without display)		//now press and hold the OFF button (two button remote without display)
	//or the heating button (four button remote with display).		//or the heating button (four button remote with display).

			Alternative method allows to pair the remote without diagnostic interface. Disconnect the Telestart module, reconnect it, and press&hold the OFF button on the remote.
			<ref>https://www.youtube.com/watch?v=qIqyhKyWqcs</ref>
			<ref>https://www.youtube.com/watch?v=8U0M-ueRhtE</ref>

	=== Heater unlock<ref>https://forums.ross-tech.com/index.php?threads/7144/#post-138785</ref> ===		=== Heater unlock<ref>https://forums.ross-tech.com/index.php?threads/7144/#post-138785</ref> ===

Mr-fix: /* Basic Settings */

2026-02-01T17:01:32Z

Basic Settings

← Older revision		Revision as of 19:01, 1 February 2026
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	== Basic Settings ==		== Basic Settings ==
	=== Remote pairing ===		=== Remote pairing<ref>https://forums.ross-tech.com/index.php?threads/16109/#post-144573</ref> ===
	~~''TODO''~~		Heater (0x18) → Basic settings → Adapting RF transmitter (IDE06650) → Go!
			//now press and hold the OFF button (two button remote without display)
			//or the heating button (four button remote with display).

	=== Heater unlock<ref>https://forums.ross-tech.com/index.php?threads/7144/#post-138785</ref> ===		=== Heater unlock<ref>https://forums.ross-tech.com/index.php?threads/7144/#post-138785</ref> ===
	Heater (0x18) → Basic settings → Disengaging heater (IDE06654) → ~~Do it~~		Heater (0x18) → Basic settings → Disengaging heater (IDE06654) → Go!
	Heater (0x18) → DTC Fault Codes → Clear Fault Codes		Heater (0x18) → DTC Fault Codes → Clear Fault Codes

Mr-fix: /* Basic Settings */

2026-02-01T16:57:17Z

Basic Settings

← Older revision		Revision as of 18:57, 1 February 2026
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	== Basic Settings ==		== Basic Settings ==
			=== Remote pairing ===
	''TODO''		''TODO''

			=== Heater unlock<ref>https://forums.ross-tech.com/index.php?threads/7144/#post-138785</ref> ===
			Heater (0x18) → Basic settings → Disengaging heater (IDE06654) → Do it
			Heater (0x18) → DTC Fault Codes → Clear Fault Codes

	== Demo ==		== Demo ==

Mr-fix: /* Costs */

2026-02-01T16:33:28Z

Costs

← Older revision		Revision as of 18:33, 1 February 2026
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	== Costs ==		== Costs ==
	* Aux heater unit = 760 PLN (used)		* Aux heater unit (with circulation pump)= 760 PLN (used)
	* Wiring kit = 219 PLN (new)		* Wiring kit = 219 PLN (new)
	* Telestart module = 180 PLN (new)		* Telestart module = 180 PLN (new)
	* Telestart remote = 92 PLN (used)		* Telestart remote = 92 PLN (used)
	* Telestart antenna = 10 PLN (new, AliExpress)		* Telestart antenna = 10 PLN (new, AliExpress)
	* Fuel pump = 299 PLN (new, OEM)		* Fuel pump (with tank straw) = 299 PLN (new, OEM)
	* Fuel line + quick release connectors = 50 PLN (new, AliExpress)		* Fuel line + quick release connectors = 50 PLN (new, AliExpress)
	* Exhaust muffler + flex pipe = 30 PLN (new, AliExpress)		* Exhaust muffler + exhasut flex pipe = 30 PLN (new, AliExpress)
			* Universal coolant hose (20mm inner diameter) = 35PLN (new)

	Total: ~~1640PLN~~		Total: 1675PLN

	== Research & Reference ==		== Research & Reference ==

← Older revision		Revision as of 08:08, 19 May 2026
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	Configure gateway so it knows that there's new hardware and how to handle it. <ref>https://vagcode.info/en/components/dd609e74cb72a4cb1292c6ab70d71437.html</ref>		Configure gateway so it knows that there's new hardware and how to handle it. <ref>https://vagcode.info/en/components/dd609e74cb72a4cb1292c6ab70d71437.html</ref>

	//Add new module		// Add new module
	Gateway (0x19) → Adaptation → Installation list → (Auxiliary Parking Heater) Node 0x6A → coded		Gateway (0x19) → Adaptation → Installation list → (Auxiliary Parking Heater) Node 0x6A → coded

	//Let know the Efficiency Board Computer to calculate its thing		// Let know the Efficiency Board Computer to calculate its thing
	//with the park heater in mind. Most likely this also adds		// with the park heater in mind. Most likely this also adds
	//the parking heater to the fuel efficiency live tips		// the parking heater to the fuel efficiency live tips
	Gateway (0x19) → Long Coding → Byte:13 → Bit: 2 (BCmE Standheizungsberechnung) → Active		Gateway (0x19) → Long Coding → Byte:13 → Bit: 2 (BCmE Standheizungsberechnung) → Active

	=== Webasto Heater ===		=== Webasto Heater ===
	//coding A315 works for my Audi S3 8V		// coding A315 works for my Audi S3 8V
	Aux. Heater (0x18) → Long Coding → Byte 0 → Bit: 0 (Low Voltage Cut-Out) → 0 (internal) / 1 (energy management)		Aux. Heater (0x18) → Long Coding → Byte 0 → Bit: 0 (Low Voltage Cut-Out) → 0 (internal) / 1 (energy management)
	Aux. Heater (0x18) → Long Coding → Byte 0 → Bit: 1 (Circulation Pump) → 0 (via CAN-BUS) / 1 (direct)		Aux. Heater (0x18) → Long Coding → Byte 0 → Bit: 1 (Circulation Pump) → 0 (via CAN-BUS) / 1 (direct)
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	=== Body Control ===		=== Body Control ===
	//let's make sure that the interior monitoring sensors		// let's make sure that the interior monitoring sensors
	//will not freak out by the air movement made by the air blower		// will not freak out by the air movement made by the air blower
	BCM (0x09) → Adaptation → Anti-theft device → Parking heater → installed		BCM (0x09) → Adaptation → Anti-theft device → Parking heater → installed

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	Let climatronic know that there's an additional hardware that takes role in the heating function.		Let climatronic know that there's an additional hardware that takes role in the heating function.

	//Auxiliary heater functionality		// Auxiliary heater functionality
	Climatronic (0x08) → Long Coding → Byte: 05 → Bits: 4-7 (aux heater) → 4x (fuel parking heater installed)		Climatronic (0x08) → Long Coding → Byte: 05 → Bits: 4-7 (aux heater) → 4x (fuel parking heater installed)

	//Parking heater functionality		// Parking heater functionality
	Climatronic (0x08) → Long Coding → Byte: 06 → Bits: 0-3 (parking heater) → x1 (installed)		Climatronic (0x08) → Long Coding → Byte: 06 → Bits: 0-3 (parking heater) → x1 (installed)

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	Enable aux heater submenu in CAR settings to control timers, duration, modes...		Enable aux heater submenu in CAR settings to control timers, duration, modes...

	//communication between infotainment and heater over BAP		// communication between infotainment and heater over BAP
	Infotainment (0x5F) → adaptation → Car Function List BAP Gen2 → auxiliary heating 0x03 → activated		Infotainment (0x5F) → adaptation → Car Function List BAP Gen2 → auxiliary heating 0x03 → activated
	Infotainment (0x5F) → adaptation → Car Function List BAP Gen2 → auxiliary heating 0x03 msg bus → comfort data bus		Infotainment (0x5F) → adaptation → Car Function List BAP Gen2 → auxiliary heating 0x03 msg bus → comfort data bus

	//enable new submenu and set the rule for it to be available while vehicle is moving		// enable new submenu and set the rule for it to be available while vehicle is moving
	Infotainment (0x5F) → adaptation → Car Function Adaptations Gen2 → menu display auxiliary heating → activated		Infotainment (0x5F) → adaptation → Car Function Adaptations Gen2 → menu display auxiliary heating → activated
	Infotainment (0x5F) → adaptation → Car Function Adaptations Gen2 → menu display auxiliary heating over threshold high → activated		Infotainment (0x5F) → adaptation → Car Function Adaptations Gen2 → menu display auxiliary heating over threshold high → activated