Auxiliary Electric Air Heater

[1854sailor]

So, I just checked the build specs by VIN HERE and in says that our GSW has the 7E6 option installed. I haven't noticed any heat until the coolant temp is ~140°F so I'm wondering if it has to be activated with VCDS...

 

[C C]

Yes, aux heat can be turned off and on with VCDS. Mine comes on automatically with the heat control on max and the outside temp is below some unknown-to-me degree. It came that way from the factory.

Personal experience. Aux heat and seat warmers in conjunction with cold temperature to put a serious strain on the alternator to charge the battery. Short trips and big electric loads equals discharged battery. The 200 rpm bump in idle speed isn't quite enough to offset demand.

 

[mxtdiguy]

Yes, aux heat can be turned off and on with VCDS. Mine comes on automatically with the heat control on max and the outside temp is below some unknown-to-me degree. It came that way from the factory.
Personal experience. Aux heat and seat warmers in conjunction with cold temperature to put a serious strain on the alternator to charge the battery. Short trips and big electric loads equals discharged battery. The 200 rpm bump in idle speed isn't quite enough to offset demand.

Interesting. Aren't our alternators rated for 140 amps ? Seems like that would be enough.

 

[C C]

My better half hates the cold so the heat is always blowing full blast and seat warmers on high. Doesn't matter if the engine is putting out any heat yet or even in the car long enough for the seat to heat, that's just how she is. I've learned the hard way, 140 amps has to be applied for much longer than a few minutes per restart.

 

[RIP TDI]

Another post reported that to activate, both heat and fan speed must be at max and coolant temp below an estimated 150F.

 

[Mike in Anchorage]

Mine activates well below max settings on either fan speed or temp control. Last week I started the car after work, about -10C outside. Went out to brush off the snow and by the time I got back in, less than a minute, warm air was on the windshield and melting the snow.

 

[740GLE]

you're american, quit it with the Celsius crap! that's 14F.

 

[sloinker]

I don't think either of my '15 Golfs have this option. Both are S models one a sportwagen.

 

[adjat84th]

My SEL does not have the auxiliary heater installed which could very well be due to the cooling system being "hot climate" which uses at least a slightly larger radiator for the intercooler circuit.

Pretty interesting to read everything there, especially this bit for my car: 0EN Installation differentiation for vehicle components: Installation differentiation for transmission MQ 350 vehicle components.
I wonder if this explains why I have steel shift forks inside my transmission as opposed to brass. The service manual does specify that some versions of the DQ350 6spd have "reinforcement measures" on the gears and shafts.

 

[Mike in Anchorage]

you're american, quit it with the Celsius crap! that's 14F.

I know quite well what it is in Fahrenheit. I choose not to use that method. Celsius is hardly crap. If you look at how the two methods were developed to measure temperature, you'll learn that not only did Fahrenheit not meet his goal, but that he also used dubious scientific methodology.

And American is capitalized when used as a way to denote a national recognition.

 

[C C]

No telling where a vehicle ends up after it leaves the factory. Winters can be frigid and summers can be blistering, either extreme is within a day's drive from me. It would have been nice if auxiliary heat AND hot climate options were standard equipment along with engine block heater.

After all, VW managed to include air conditioning with heated seats.

 

[GreenLantern_TDI]

No telling where a vehicle ends up after it leaves the factory. Winters can be frigid and summers can be blistering, either extreme is within a day's drive from me. It would have been nice if auxiliary heat AND hot climate options were standard equipment along with engine block heater.
After all, VW managed to include air conditioning with heated seats.

Agreed. Production would be so much cheaper too if every car had every option. Pick a color and tranny and the rest is included. Ready for any climate. Just cause you live in Texas now doesnt mean the car might not live in Alaska later.

 

[Mike in Anchorage]

Agreed. Production would be so much cheaper too if every car had every option. Pick a color and tranny and the rest is included. Ready for any climate. Just cause you live in Texas now doesn't mean the car might not live in Alaska later.

I bought mine in Orlando and drove it home to Alaska. So glad it has the electric heater and not the bigger radiator. No idea why that occurred. Probably depends on where they bought the car from before the fix.

 

[Matt927]

Both my Mk6 Golf TDIs and JSW TDI were hot country cars and had the electric aux heater. Currently driving a Mk6 Golf TDI again, I can hear the relay click to energize the heater, fan speed above 2, heat control set to max and there is also an outside air threshold as well. I believe once 150-160 degrees F is reached, the heater is turned off if all the other controls are still set.

My Mk7 TDI was a hot country car and did not come with the aux heater. I assumed it was because of the new cooling circuit arhecticure to speed warm up.

 

[JM Popaleetus]

Mine is Hot Country without Auxillary Heating.

Originally delivered to Florida. That explains why I couldn’t ever hear that relay click when playing with the heat.

 

[ssffnomad]

When checking for Auxiliary Heating, you are sitting in car , or have another person under hood ? Listening for relay click

 

[Matt927]

In car.

 

[mxtdiguy]

Mine was built with Hot Country and Aux heater. weird

 

[GreenLantern_TDI]

Mine too no Aux heat. But it does say for hot and cold weather. I see alota options the SEL didnt get.

 

[reilljp]

How do you know if it’s hot country or not?


Sent from my iPhone using Tapatalk

 

[Ol'Rattler]

My better half hates the cold so the heat is always blowing full blast and seat warmers on high. Doesn't matter if the engine is putting out any heat yet or even in the car long enough for the seat to heat, that's just how she is. I've learned the hard way, 140 amps has to be applied for much longer than a few minutes per restart.

Make your better half better by educating her. The AUX heater is only 1000 watts. So if you turn the fan on to high right away, you are pretty much doing nothing more than chilling the AUX heater faster than it can produces heat.

Tell her to run the fan on 2 for the first few miles and she will feel some heat within about 2 blocks. It won't be a lot of heat, but it does help the car to warm up faster. Heated seats, mirrors and defogger? Turn them on as soon as the car starts. The extra load on the alternator will help the engine heat up faster.

 

[Ol'Rattler]

When checking for Auxiliary Heating, you are sitting in car , or have another person under hood ? Listening for relay click

That would be great if there were an actual relay. The AUX heat controller is a solid state device built in to the AUX heater. The best way to tell if it is installed and working is to look for a Z-35 measuring block in VCDS.

The 2015 EA288 engines are a completely new design and may not even have an AUX heater because of the 3 loop cooling system.

 

[Ol'Rattler]

I know quite well what it is in Fahrenheit. I choose not to use that method. Celsius is hardly crap. If you look at how the two methods were developed to measure temperature, you'll learn that not only did Fahrenheit not meet his goal, but that he also used dubious scientific methodology.
And American is capitalized when used as a way to denote a national recognition.

Pretty hilarious, isn't it? We are Merica and we can't do no wrong certainly has served us well in regards to the world economy and political stature. Once our business leaders tank our economy by out sourcing everything overseas, we will probably become a Chinese colony.

One of the biggest hassles in VCDS is converting Metric measurements to the antiquated SAE system. The biggest disservice our government did to us was to stop converting to metric half way.

 

[740GLE]

How do you know if it’s hot country or not?


Sent from my iPhone using Tapatalk

Under the AC system in VCDS, it's check box and it won't be checked. once checked it actually makes the AC work the way it should, blow cold air all the time.

 

[1854sailor]

Under the AC system in VCDS, it's check box and it won't be checked. once checked it actually makes the AC work the way it should, blow cold air all the time.

I think that he means the "Hot Country" (8Z6) cooling system on the VIN build spec., not the A-C setting.

 

[1854sailor]

How do you know if it’s hot country or not?


Sent from my iPhone using Tapatalk

Enter your VIN in the CarInfo webpage (Link in first post), and it will show all of the build information for your car.

 

[Lightflyer1]

That would be great if there were an actual relay. The AUX heat controller is a solid state device built in to the AUX heater. The best way to tell if it is installed and working is to look for a Z-35 measuring block in VCDS.
The 2015 EA288 engines are a completely new design and may not even have an AUX heater because of the 3 loop cooling system.

My 2015 Beetle has both the Aux heater and Hot country options.

Brand VOLKSWAGEN
Model NEW BEETLE DESIGN
VIN
Check digit Ok
Production date 2014-10-22
Model year 2015
Engine code CVCA (TDI)
Engine volume, L 2.00
Number of cylinders 4
Power, KW 110
Power, PS 150
Colour of body 8E (SILVER: reflexsilver metallic)
Colour of roof 8E (SILVER: reflexsilver metallic)
Trim JU
Gearbox code PGN (6A)
Country of sale 000 ()
Custom options
Parameter Value
E0A Special editions: No special edition
1PF Lockable wheel bolts: Standard wheel bolts
7KL Vehicle class differentiation units/platform components: Vehicle class differentiation 5C0
UG1 Hill start assist: Hill hold control
7MU Emissions standard: Emission standard LEV 3/Tier 3 125
1D0 Trailer hitch: Without trailer hitch
4UM Airbag: Driver's and front passenger air bag, NAR with front passenger air bag deactivation (2-stage)
1E9 Activated carbon canister: Without activated charcoal canister with SCR
QE2 Storage compartment package: Storage box
8L6 Antennas: "diversity" window antenna
6XN Exterior mirror setting: Exterior mirrors: electrically adjustable, separately heated
EA0 Follow-on warranty: Without subsequent warranty
5SH Left exterior mirror: Left exterior mirror: flat (US)
5RR Right exterior mirror: Right exterior mirror: convex (US)
0K0 Alternative drive system: Without alternative drive module
1X0 Drive layout: Front wheel drive
9WL "Multimedia", video/DVD/notebook connection: Multimedia socket for external audio source
A8C Equipment levels: Comfort equipment
1KD Brake type in rear: Disc brakes, rear
J1D Batteries: Battery 380 A (72 Ah)
1ZP Brake type, front: Disc brakes, front (Geomet D)
6FH Components with special surface appearance: Exterior mirror housings painted
NY0 Battery/alternator capacity: Standard battery/alternator capacity
B0D Component part sets with country-specific design requirements: Component parts set, complying with vehicle type for USA (without California), various parts
3MH Floor coverings: Dilours floor covering w/o scuff guard
1S1 Tool kit and jack: Tool kit and jack
1AT Brake systems: Electronic stabilization program (ESP)
0VM Owner's manuals: Information kit in American English
9U0 Brake pad wear indicator: Without brake pad wear indicator
9T1 Heated washer nozzles: Heated washer nozzles, front
7QA CD ROM/DVD/SD card: Without CD/DVD for navigation
7A0 CD changer/CD player: Without CD changer/CD player
QJ1 Chrome package: Chrome work package
C16 General operating permit, alterations: Operating permit, alteration
3FA Roof insert/convertible top: Without roof insert (standard roof)
UA1 Suspension system in rear: Rear shock absorption
G58 Suspension system in front: Front shock absorption
2G9 Insert for the filling up of unleaded fuel/fuel type: Filler neck module 2 with insert
0ES Installation differentiation for vehicle components: Installation differentiation for transmission DQ250 vehicle components
7AZ Theft protection system: Preparation for anti-theft alarm system
5MB Inserts: Decorative inserts
7M5 Scuff plates: Without protective film for scuff plate
7X0 Park distance control: Without park distance control
UQ3 Electric interface for external use: Electric interface for external use with an iPhone4 adapter cable
0FL Manufacturing sequence differentiation: Mexico manufacturing sequence
51A Adhesive film: Without adhesive film
4R4 Window regulator: Power windows with comfort operation and circuit breaker
6A0 Fire extinguishers: Without fire extinguisher
VL0 Pedestrian protection: Standard pedestrian protection measures
VF0 Pedal cluster: Standard pedal cluster
8K4 Headlight control: Separate daytime running lights NAR
7G0 Vehicle tracing system: Without preparation for VTS (vehicle tracking system)
F0A Vehicle specifications: No special purpose vehicle, standard equipment
8GU Alternators: Alternator 140 A
0YD Weight category rear axle: Weight range 4 installation control only, no requirement forecast
L13 Weight category front axle: Suspension range 13 installation control only, no requirement forecast
T0N Base engine: 4-cylinder diesel engine 2.0 l unit 04L.D
4U5 Luggage net/pocket on backrest(s): Luggage pockets on backrest
8T2 Cruise control system: Cruise control system (CCS) electronic
2B0 Exterior noise suppression measures: Without additional exterior noise suppression
G1A Transmission specifications: 6-speed automatic transmission
4Z4 Glove compartment: Glove compartment door without light
3P0 Brackets: Without bracket for first aid kit and warning triangle
IA2 Bracket: With bracket
6PC Hand brake lever handle: Leather hand brake lever handle
5J0 Rear spoiler: Without rear spoiler
5N1 Grab handles at roof frame: Folding grab handles
0N4 Rear axle: 4-link rear suspension
3KC Rear seats: Rear seat bench unsplit, backrest split folding
9AB Heating and air conditioning system: Manually controlled air conditioning
8IA Headlamps: Halogen headlight
FC0 Customized installation: Without customized installation
U5C Instrument clusters: Instrument insert, mph speedometer USA
4N3 Dashboard: Comfort dashboard
4L2 Breakaway interior rearview mirror: Dipping breakaway interior rear view mirror
K8F Body style: Roundback
1W0 Refrigerator: Without refrigerator/glove compartment cooling system
0Y3 Climatic zones: Cold zones
3Q1 Rear head restraints: Rear headrests
3J2 Head restraints: Height-adjustable headrests
2LC Fuel tank treatment: Fuel tank with special material treatment (coextrusion)
1Z0 Fuel quantity for initial filling: Initial standard fuel filling
0F5 Fuel systems: Fuel system for diesel engine
5C1 Body measures: Body measures for increased safety requirements
KA0 Camera systems/accident sensors: Without camera systems/accident sensors
6KA Radiator grille: Radiator grille
KL0 License plate lighting: Standard license plate lighting
6P2 Rear license plate carrier: Rear license plate carrier (NAR)
6W3 Front license plate carrier: Front license plate carrier (small, NAR)
5K7 Paint preservative/transit coating: Transport protection film (minimum protection) with additional transport protection measures
QQ2 Light package (lighting): With additional lights (interior lighting)
L0L Steering system arrangement: Left-hand drive vehicle
8S8 Reading light: 2 reading lights
1N3 Steering: Speed-related variable steering assist (Servotronic)
3H9 Backrest release: Backrest release for front seats with "Easy Entry"
VK1 Air duct, front area: Air duct, type 1
7P4 Lumbar support: Manually adjustable lumbar support in front seats
2FQ Steering wheels: Leather trimmed multi-function sports steering wheel w/ Tiptronic
AV2 Driving on the left/on the right: Driving on the right (NAR)
8RM Speaker installation: 8 speakers (passive)
8Q0 Headlight range control: Without headlight-range adjustment
6E4 Center armrest: Front center armrest
9Q5 Multi-function display/trip computer: Multi-function display with control
8Z6 Engine cooling system: Hot country
DN4 Engine specifications: 4-cylinder turbo diesel engine 2.0 l/110 kW (4V) TDI common rail| b.e. T37/ TS1/TR1/T0P/T0N/T13/T29/TM4/TD1/TI9/T1I
AW0 Market-specific vehicle version: Version (low)
7Q0 Navigation device: Without navigation device
8TA Rear fog lamp: Without rear fog light
8WA Front fog lamp/additional headlamp: Without front fog light
EL2 Online services: Online service, with OCU, without head unit coding, without engine immobilizer interconnection
4P0 Platform module, luggage compartment floor: Rear floor panel module, type 1
7PB Platform group class: Platform group class 2
KP4 Panic switch: With additional switch
FR8 Protective cover/tonneau cover: Without protective cover
1NL Wheel covers: Covers for alloy wheels
F33 Wheels: Alloy wheels 7J x 17
8AX Radios: Radio Premium 8
9JF Smoker's/non-smoker's package: Non-smoking package (NAR)
7K6 Direct tire pressure monitoring system: Flat tire indicator
H6C Tires: All-weather tires 215/55 R17 94H (NAR)
V0A Tire suppliers: Tires w/o specification of tire brand
1G6 Spare wheel/breakdown kit: Space-saving spare wheel
3QR Restraint systems, front: 3-point seat belts without height adjustment and US label (NAR), front
4X3 Side airbag: Side air bag front with curtain air bag
6Q2 Gearshift knob/handle: Leather gearshift knob/handle
0SC Special labels/plates: Labels/plates in English
8SA Rear combination lamps: Taillight assemblies, standard design
QI7 Service indicator: Service indicator ( 10000 miles )
3TF Front seat, left: Comfort seat, front left
3SF Front seat, right: Comfort seat, front right
QD0 Nameplate for sales name: Without lettering for sales name
9P7 Seat belt check: Seat belt reminder, optical and acoustic electric contact in buckle
3ZD Outer rear seat belts: 3-point seat belts, outer rear with US label
N2Q Seat trim covers: Leatherette seat covering
3L3 Seat adjustment: Manual height adjustment for front seats
4A3 Seat heater: Seat heater for front seats separately controlled
7R7 Side lights: Side marker lights plus additional turn signal lights in exterior mirrors
7L3 Start-stop system/regenerative braking: Without start/stop system without regenerative braking
8Y4 Horns: High-sounding horn
5XX Sun visors: Sun visors with mirror, illuminated (NAR)
7Y0 Lane change assist/lane keeping system: Without lane change assistant
4KC Side and rear windows: Side and rear windows in heat-insulating glass
4B4 Protective side molding: Protective side molding
7B5 Socket: 12-volt socket(s)
2JG Bumpers: Body-colored bumpers
0BG Rear stabilizer bar: Rear stabilizer
0AB Front stabilizer: Front stabilizer
2UA Heavy-duty/sports version: Standard design
8X0 Headlamp washer system: Without headlight washer system
8N4 Windshield wiper intermittent control/ light/rain sensor: Windshield wiper intermittent control with potentiometer (four speeds)
2Y0 Protection frame (roll bar): Without roll bar
0ND Nameplate set: Nameplate set "TDI"
6JD Door handles/inlays: Body-colored door handles
1Q1 Mass damper for steering wheels: Mass damper for steering wheel, 26.5Hz
4F6 Door and lid locking system: Central locking system "Keyless Entry" without deadlock (NAR)
BU1 Type approval countries/countries with special requirements: Legal requirements USA 1 States without CARB requirement
5D2 Carrier frequency for radio remote control: Carrier frequency 315 MHz
4AB Door and side trim panels: Door and side trim panel partially in leather
0A1 Doors: 2 doors
QU4 TV reception/digital radio reception: Satellite radio reception NAR integrated in device
1SA Front underbody guard: Without additional front underbody guard
1EB Identification plates: Without identification plate
1T0 First aid kit / warning triangle: Without first aid kit and warning triangle
9ZR Telephone / telematics: Preparation for telephone without 3-key module
7S0 Wind deflector: Without wind blocker
QG1 Service interval prolongation: Service interval prolongation
7E6 Heat accumulator system/auxiliary heater: Electric auxiliary air heater
4GS Windshield glass type: Heat-insulating glass windshield
5M0 Strip and films all-around: Without warning strip and films
8W1 Washer fluid level indicator: Washer fluid level indicator
2WA Additional tires (snow tires): Without additional tires
0TD Floor mats: Front and rear floor mats
4ZC Decorative trims: Moldings
3B7 Additional child seat anchors: Child seat anchor according to Canadian requirements and child seat system ISOFIX
9M0 Auxiliary heater: Without auxiliary/parking heater
System information
Parameter Value
Data language en
Record was added in database 2019-01-04 13:29
Last query date 2019-01-04 13:29
Last update date 2019-01-04 13:29
Brand VOLKSWAGEN
Data display version 2.0
Manufacturer's data version 8.0.0.23 rev 1244 from 2018-09-24

 

[JM Popaleetus]

If anyone wants to look into adding the auxiliary heater, the part number is 5Q0963235C.

Looks to be about $50-$100 used and $200 new. Not all that unreasonable actually. I wish I could plug in a FrostHeater where I park.

 

[GreenLantern_TDI]

If anyone wants to look into adding the auxiliary heater, the part number is 5Q0963235C.

Looks to be about $50-$100 used and $200 new. Not all that unreasonable actually. I wish I could plug in a FrostHeater where I park.

Yeah i wonder what else is required to make it function as it should....

 

[JM Popaleetus]

Yeah i wonder what else is required to make it function as it should....

Wiring harness and a VCDS.

It’s only three connections: Positive, ground, and CAN. The hardest part of the install seems to be getting through the firewall to the bus bar.