Eberspacher

Just for 411 and 412 stuff.
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oldtimer
Posts: 38
Joined: 12th August 2018 - 11:09am

Eberspacher

Post by oldtimer » 19th October 2018 - 10:06pm

Decided today I ought to look at seeing if my eberspacher heater worked. I was told by the previous owner that it worked but I have not needed it so I turned the dial on the dash and.....nothing, no green light nothing. Searched the internet and learned that the heater "pullup" by the handbrake has to be straight up. Tried that and still nothing. Gave it one last try and held the lever up as far as it would go, turned the dash switch with my other hand and the knob lit up?

Any advice would be great fully received and please make it as simple as possible or I look like buying a big coat lol

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937carrera
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Joined: 7th June 2013 - 11:54pm
Location: North Yorkshire

Re: Eberspacher

Post by 937carrera » 19th October 2018 - 10:27pm

You might find a user manual handy

https://www.type4.org/manuals/ba4/index.html

Have a fire extinguisher handy, just in case the fuel pump or hoses leak. It would be a good idea to replace the fuel hose as well. Brickwerks have the proper stuff that handles ethanol in fuels, check what size you need

https://www.brickwerks.co.uk/brickwerks ... ssurances/

A handy supply of fuses might be useful too - mine often used to blow
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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oldtimer
Posts: 38
Joined: 12th August 2018 - 11:09am

Re: Eberspacher

Post by oldtimer » 20th October 2018 - 12:21am

Thanks for the reply.......I shall buy a big coat then and a fire extinguisher.

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937carrera
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Joined: 7th June 2013 - 11:54pm
Location: North Yorkshire

Re: Eberspacher

Post by 937carrera » 20th October 2018 - 12:28am

:( I didn't intend to put you off.

Have a read of the troubleshooting section, it'll explain how it works.

Essentially, you need the fuel pump to work, the fan to spin, the spark plug to spark and all the safety gubbins not to interfere.

I haven't got the one in my 412LS working yet, though it is a summer car so not necessary. She's tucked away for winter now.
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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oldtimer
Posts: 38
Joined: 12th August 2018 - 11:09am

Re: Eberspacher

Post by oldtimer » 20th October 2018 - 10:12am

Don't worry about putting me off that's not hard lol. The heaters not a priority as its a summer car also but I was just curious . I`m going to have a look today and start with the fuses under the back seat and take it from there.
Another quick question. Are the door card rubber grommets the same as a beetle as they look bigger?

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937carrera
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Location: North Yorkshire

Re: Eberspacher

Post by 937carrera » 20th October 2018 - 12:14pm

Don't know, I've never had a Beetle
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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oldtimer
Posts: 38
Joined: 12th August 2018 - 11:09am

Re: Eberspacher

Post by oldtimer » 21st October 2018 - 10:55am

Did a visual check yesterday and everything seemed ok so I twisted the switch. Green light stopped on, fan was working and the low growl of heater was heard. I was sat in the car and with hand above the demister exit waited for heat.....nothing!
Got out of the car and noticed smoke coming from the back end.....oh my god!!!!
I`m guessing the smoke was from the unit not being fired for a while and the reason why the smoke was under the car and not in the car was because it looks like the pipes from the heater to the system are missing.
Does anyone have a system diagram???
Heart rate is now back to normal, car still runs this morning appears to be in one piece.
Oh and I`ve got my big coat out of the wardrobe lol

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937carrera
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Joined: 7th June 2013 - 11:54pm
Location: North Yorkshire

Re: Eberspacher

Post by 937carrera » 21st October 2018 - 11:43pm

Not a lot more that I know about, here's a description

Diverted air from engine cooling fan over heat exchangers >
heat exchanger hose up to BA4 >
Air heated further when BA4 is switched on >
heat exchanger hose exit of BA4 to cable operated diverter flaps (that rust up) >
Internal routing to cabin distribution system
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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oldtimer
Posts: 38
Joined: 12th August 2018 - 11:09am

Re: Eberspacher

Post by oldtimer » 22nd October 2018 - 1:21pm

Thanks for the info buddy

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richtbiscuits
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Joined: 1st March 2015 - 12:25am

Re: Eberspacher

Post by richtbiscuits » 24th October 2018 - 8:03pm

Just to say, the door card grommets are indeed bigger. The clips are bigger too. Sadly they're not terribly easy to get hold of but you can usually find some still attached to knackered old door cards!
'72 412 LE Variant
'73 412 LE Variant
'83 1200 Beetle

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oldtimer
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Re: Eberspacher

Post by oldtimer » 27th October 2018 - 9:35am

Thanks richtbiscuits I had some beetle ones handy and yes they are too small. My door cards and clips are ok I just wanted to replace a few of the perished rubber grommets and was wondering if someone else had found a suitable one off some other model?

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