door lock solenoids

Steve Sears steve.sears at
Wed Dec 14 15:15:45 EST 2005

I have a Bulldog Security remote unlock setup installed in my '87 5ktq - I 
bought it from Wallymart for around C$40 or so.  You can install it by 
working entirely under the rear seat - tapping into the wires going to the 
remote unlock pump, battery, ground and the parking lights (if you want them 
to flash).  IIRC the system in the Type 44 reverses polarity on the wires 
going to the pump - one polarity for lock and the other for unlock.  The 
unit actuates the pump depending on the button pressed - the trick is that 
for a pneumatic system, like the one in Audis and Mercs, the control pulse 
must be for 2.5 seconds (the instructions tell you how to program the 
remote) - enough to make the pump raise the driver's or passenger's lock 
button - from that point on, the system works normally - the button is up, 
so the pump opens all the locks.  Tapping into the system is not a problem - 
the wiring diagram is quite well laid out - I had a harder time wiring in 
the relays to make the parking lights flash.  I made a wiring harness for 
that, but you have to use 2 relays (or a double output single relay) to make 
the parking lights flash on both sides as they are independent circuits 
(apparently there is a L/R switch on European cars.....I learned that on our 
last local Audi group pub night).
Princess Auto in Canada - - had a similar remote system 
"Wireless Remote Kit" pn#8003441 for C$29.99 last month.
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes

----- Original Message ----- 
> From: "Nick Lawrence" <nick at>
> Subject: door lock solenoids
> To: <quattro at>
> Message-ID: <007101c6001f$78da81d0$940c73d1 at D7Z0ZR61>
> Content-Type: text/plain; charset="iso-8859-1"
> On a type 44, has anyone added a door lock solenoid to allow installing a 
> remote opener.
> I can find several types listed but if someone has found one that mounts 
> and attaches easily it would help.
> Nick

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