Das Heinkel Forum für Perle, Roller und Kabine

the indicator on the rear right doesn't work. I think its a faulty relay. Where can I get a new relais?
THANKS

Hi, nameless user,

I don't think so. Get a wiring diagram (e.g. from the Heinkel Club's webpage) and you will see that there is only one wire leading from the relais to the indicator switch. The switch has two connectors (1) for the left and (2) for the right indicators (rear and front each) and (3) one to the relais. So it's not likely that the switch is the culprit either (if one bulb is working on a side the relais and the switch are working as well).

My guess? Bad/broken/corroded connection (plus or ground) anywhere in the cable loom or at the bulb holder - or a burnt out bulb. Please keep in mind to use correct bulbs - the old relais needs some wattage to funtion correctly.

To answer your question: if you are a member of the Heinkel Club you can get it at the Club's online shop. If not you can either become a member or you can try to buy a relais e.g. at ebay.

Good luck in finding the cause of the problem and fixing it,
Bernd

P.S.: it would be nice to know what vehicle you are talking about. The text above refers to a Tourist 103-A2 (and most 103-A1 with indicators).

Hi Bernd

Thanks for the info, I've just become a member of the club, I'll guess I have to do some more troubleshooting or as you say, get a new wiring loom.
BR
Jeroen

ps: it's a 103-A1

Hi Jeroen,

no, IMHO you don't need to go for the "big solution" (i.e. buying and installing a complete new wiring loom). At least not if this is your only electrical problem at the moment.

I did a complete rewiring on my 103-A1 some years ago - but this was in combination with a "total restoration". Most of the cables were still tolerably good, but I did it anyway because it was easy while the frame and bodywork were "naked". But if you do it on a still running Tourist installing a new cable loom is a pain in the ass.

What I would do instead as a first measure: connect some "flying wires" (see wiring diagram): first from the bulb holder to the indicator switch - that's easy to do. If this does not solve your problem, put another "flying wire" from switch to relay (BTW: I don't think this is necessary, because you wrote that the indicator front right still works). If this does not help, install one from the relay to the fuse box... and so on.

The approach with makeshift flying wires helps to find a broken wire or connection and you can do it without removing any already installed wires (just parallel; you don't have to fixate these flying wires, because you can do all necessary testing on a standing vehicle).

But first of all : check the bulb holder and its contacts. And simply switch one of the working bulbs to the rear right. And check (and measure) if your bulb holder has a good ground connection (once again: a flying wire helps). The indicator housings can get wet and corrode if the gaskets are not 100% watertight.

Your problem is annoying - but it is solvable (believe me - after you've found the culprit it will be obvious why your indicator didn't work ).

Good luck,
Bernd