My AutoTerm Night-Heater diesel connection

Have you looked underneath yet to find it?

"Yes but not sure it works with vans without adblue"
Adblue makes no difference to the diesel return line.
Heater, pump, exhaust, air intake, electrics all fitted.
Just needs fuel supply.
Need to remove plastic under shield to find return pipe, and wanted to know where it was roughly.

I'll put it on stands tomorrow, and take a look.
 
Might be worth taking some pics
Good idea. The install so far is fully exposed, as I'm waiting for a replacement front right plastic undertray, as mine was shattered before I bought it.
Ordered a used one from Evesham auto breakers. They are hard to find, and this breaker mainly deals with vans.
 
Just as an update to this thread. I have recently fitted the fuel feed with 'T' into the return pipe. Was dead easy, just have to loosen the undertray and clip it in. Loads easier than dropping tank
 
Just as an update to this thread. I have recently fitted the fuel feed with 'T' into the return pipe. Was dead easy, just have to loosen the undertray and clip it in. Loads easier than dropping tank
Totally agree. The return fuel pipe is the way to go - much simpler than dropping the tank.

Mines been working for a few weeks now, with no issues.
 
Has anybody else fitted this tee piece ?
As a small update, fitting this 'T' is an absolute piece of cake, and works a treat.

The only small downside is, the return pipe (in my case) only reaches to about a quarter full tank level. So heater will draw air, and not work, if fuel level below 1/4.

You then need to top up the tank, and prime the heater again.
 
Thats good info about the 1/4 full. I've done the T as well and havent had any issues, had it on this morning in fact. But i've been twitchy about running the heater on a low tank so havent go below about a 1/3 of a tank when using.

Like mentioned before its really easy to do. My mate with a set of ramps that helped me was suprised how quick it was (5mins) having done the usual method on someone elses van
 
Thats good info about the 1/4 full. I've done the T as well and havent had any issues, had it on this morning in fact. But i've been twitchy about running the heater on a low tank so havent go below about a 1/3 of a tank when using.

Like mentioned before its really easy to do. My mate with a set of ramps that helped me was suprised how quick it was (5mins) having done the usual method on someone elses van

Hey guys, what t piece are you using?
 
As a small update, fitting this 'T' is an absolute piece of cake, and works a treat.

The only small downside is, the return pipe (in my case) only reaches to about a quarter full tank level. So heater will draw air, and not work, if fuel level below 1/4.

You then need to top up the tank, and prime the heater again.
brilliant, little job for the weekend. Thank you
 
Posted before but I have heard that uf you have factory webasto (the kind that warms engine) you can T iff the feed to that. ?
 
I wish I’d known about this before I fitted mine!
Tank is rarely below 1/4 full so no problem there.
Further Update!
My heater started spluttering at just under half a tank?
Then another occasion whilst on 'one mark above half'.
I put this down to 'lie of the land.'
Still thinking this was due to a 'short' return pipe on the fuel sender, I decided to extend it. Once I'd dropped the tank etc, realised the return pipe had a built in non-return value. This must mean, the heater gets fuel from the other end (vehicle fuel filter canister). When this runs dry, the heater loses fuel and started spluttering.
I've now ordered a pick up tube, and will route the heater supply via that soon.
 
Nothing wrong with fitting in the return, you do not have to use a stand pipe - the only possible problem is if the return does not go sufficiently deep enough into the tank to draw on liquid rather than air. No one has yet determined exactly how far it goes down on our vans that I have heard of to date.

Absolutely nothing wrong with the tight bend on the hose - OEM preformed hose as supplied by Webasto and others.
The return pipe connects to a plastic tube about 7cm long on my 2015 T6.
Problem is, there's a non return valve built it. This must mean the heater draws fuel from the vehicle fuel filter. This won't last too long.
 
Just completed my autoterm install and used the return pipe as said its easier than dropping the tank and works well so far.

View attachment 132625

Didn't take the full undertray off, just a couple of bolts
After fixing white plastic fuel pipe from this t-connector to the return hose it needs to be run over to diesel heater on driver's side. It would go above the exhaust heat shield. Is this safe? I mean hopefully the pipe won't be melted or deteriorate over time with heat from exhaust pipe below.
I'm thinking of threading the white diesel heater fuel pipe into a rubber fuel line hose for extra protection.
 
After fixing white plastic fuel pipe from this t-connector to the return hose it needs to be run over to diesel heater on driver's side. It would go above the exhaust heat shield. Is this safe? I mean hopefully the pipe won't be melted or deteriorate over time with heat from exhaust pipe below.
I'm thinking of threading the white diesel heater fuel pipe into a rubber fuel line hose for extra protection.
Exactly what I did - it was absolutely fine when inspected a year later. The outer pipe is clipped to the chassis though.

Please be aware of my previous posts regarding use of the return pipe to supply the heater. There is a non-return valve built into the fuel 'pick up' in the tank, on the return pipe. This will make the use of the return pipe as a fuel supply to the heater very unreliable.
 
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