Anyone use GDL for repair services? I need to have my actuator/amplifier checked out and they seem to be fairly knowledgeable. Thanks in advance for replies.

I have used them and was very pleased with dealing with Peter. He will do a good job for you.

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Jim

Thanks Eng, Peter is the one with whom I spoke, also. He did sound like he knows his 'stuff'. (now, if I can only get that box out from under the dash )

LOL - getting the box out is easy - it is those screws that are tough - especially the one that is hard to see. Needless to say that screw that did not get put back in on mine. Peter mentioned that you could take the complete bracket out without removing the screws but I had already gotten mine out by the time he tried to explain it to me. Ask him about it.

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Jim

egatwork/southern_son,

my cruise is acting up. sometimes works perfectly, sometimes won't come on (usually when cooler/wet weather), sometimes comes on but surges. Could it be that silver box under the dash (actuater?).

how do you contact GDL? is it that much cheaper to have your existing unit repaired rather than buy a new one? any way to know what the real problem is before starting to spend money (which, unfortunately, is my usual mode of repair).

thanks,

Nic
'85 300CD @ 142k miles

The way I did it was to send the actuator and the "silver box" underneath the dash to Peter. He checked everything out and found that the "silver box" needed rebuilding which he did and everything works fine now.

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Jim

What is the address and phone number to this business that checks out amplifiers? Also, does he sell refurbished amplifiers?

My cruise control has never worked since I bought the car a year ago. I've gone through and resoldered all the connections (per the recommendations I've read at the MB owners website) within the amplifier and it still doesn't work.

Thanks

Herb
'82 240D

GDL stands for General Development Laboratories.
www.gdl-online.com

Herb,

Do you have the address for the instructions you mentioned?

My next project (after putting my engine back together, heh) is to get the cruise to work again. I've got no idea what's wrong with it, since it hasn't worked since I've had the car, and I cannibalized some of the linkage arms to keep the rest of the throttle linkage working... long story, but I hope to get it all working again soon.

Thanks!

- Nathan
'83 240D "Steiner"
'00 New Beetle TDI

We have a tool at my place of employment that plugs into the cruise control wiring harness that determines 99% of the problem. Better than guess work don't you thank

Nathan,

If memory serves, I got it off the Mercedes Car Club of America. I tried to get on their site this morning and it would not open up. Anyway, I have the instructions at home and if you want, I can fax them to you.

Herb
'82 240D

Nathan,

Here is the website. I was able to get through.


http://www.mbca.org/MBCA_Troubleshooting_cruise_cont.htm


It is a good article on troubleshooting the cruise control.

Herb
'82 240D
117,000 miles

My understanding is that prior to '81 all were vacuum. '81 and after are all electrical. Check the site address in my post above for further clarification.