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  #16  
Old 03-23-2012, 01:17 AM
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Thumbs up

Looks like I will mail him my SDL c-amp too.
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I'm not a doctor, but I'll have a look.

'85 300SD
'87 300SDL
'90 300SEL
'91 560SEL

Eight others from IH, BMW, GM, Ford, and Volvo.

Liberty will not descend to a people; a people must raise themselves to liberty.
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  #17  
Old 03-23-2012, 01:00 PM
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Location: Barrington, RI
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Quote:
Originally Posted by JamesDean View Post
If anyone is interested, I'd be happy to repair your cruise control amp. I enjoy soldering. lol.
How much would you charge to repair an amp?
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91 300D "Otis", Smoke Silver, 113k mi, DD
98 E300D "Murray", Silver, 86k mi, Stage 2 Rocketchip chip tuned, other DD
99 E300D "Winston", Black, 158k mi, son's DD
84 300D, Anthracite Grey, 262k miles, FOR SALE IN SPRING

Ten other MB's owned and sold
2002 Honda Odyssey 184k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife (OK, I ripped this off from another board member...but my wife was born in 1961 and she is very tolerant.)
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  #18  
Old 03-23-2012, 03:32 PM
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Quote:
Originally Posted by shertex View Post
How much would you charge to repair an amp?
I charge $50 for the actual repair work. Shipping is done via usps flat rate boxes, its only $5.35 each way.

I've started keeping a spreadsheet of what I've repaired. So far I've done about 5 of the newer 005 545 models with success and one of the 002 models (79Mercy's) with success.
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Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
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  #19  
Old 03-23-2012, 05:03 PM
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Join Date: Jul 2004
Location: Barrington, RI
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Quote:
Originally Posted by JamesDean View Post
I charge $50 for the actual repair work. Shipping is done via usps flat rate boxes, its only $5.35 each way.

I've started keeping a spreadsheet of what I've repaired. So far I've done about 5 of the newer 005 545 models with success and one of the 002 models (79Mercy's) with success.
Thanks....PMs sent.
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91 300D "Otis", Smoke Silver, 113k mi, DD
98 E300D "Murray", Silver, 86k mi, Stage 2 Rocketchip chip tuned, other DD
99 E300D "Winston", Black, 158k mi, son's DD
84 300D, Anthracite Grey, 262k miles, FOR SALE IN SPRING

Ten other MB's owned and sold
2002 Honda Odyssey 184k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife (OK, I ripped this off from another board member...but my wife was born in 1961 and she is very tolerant.)
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  #20  
Old 03-23-2012, 06:09 PM
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Location: Barrington, RI
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The comment about coding plugs failing prior to the amp surprised me.
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91 300D "Otis", Smoke Silver, 113k mi, DD
98 E300D "Murray", Silver, 86k mi, Stage 2 Rocketchip chip tuned, other DD
99 E300D "Winston", Black, 158k mi, son's DD
84 300D, Anthracite Grey, 262k miles, FOR SALE IN SPRING

Ten other MB's owned and sold
2002 Honda Odyssey 184k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife (OK, I ripped this off from another board member...but my wife was born in 1961 and she is very tolerant.)
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  #21  
Old 03-23-2012, 06:24 PM
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Quote:
Originally Posted by shertex View Post
The comment about coding plugs failing prior to the amp surprised me.
Me too. I read it on Auto Haus AZ's website. I've yet to see a failed plug. I test them to make sure they're good too.
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
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  #22  
Old 03-23-2012, 06:38 PM
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Quote:
Originally Posted by JamesDean View Post
Me too. I read it on Auto Haus AZ's website. I've yet to see a failed plug. I test them to make sure they're good too.
I asked Peter at GDL about it. He said that, in 25 years of repairing MB cruise amps, he's never seen a bad plug.
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91 300D "Otis", Smoke Silver, 113k mi, DD
98 E300D "Murray", Silver, 86k mi, Stage 2 Rocketchip chip tuned, other DD
99 E300D "Winston", Black, 158k mi, son's DD
84 300D, Anthracite Grey, 262k miles, FOR SALE IN SPRING

Ten other MB's owned and sold
2002 Honda Odyssey 184k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife (OK, I ripped this off from another board member...but my wife was born in 1961 and she is very tolerant.)
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  #23  
Old 03-23-2012, 09:55 PM
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So I was in the garage today looking for my MityVac to test some vacuum pods and I stumbled across a cruise control amplifier. I thought it was from my gold 300SD as its and early model and I've only ever removed one (first gens were a pain to remove).

Evidently its from a first gen v8. Part number 001 545 76 32. EPC crosses to 380 and 500 SE/SEL/SEC's.

I decided to replace the capacitors and go over it like I've done the rest. I tested it out in the testing jig and it seemed to work, so I threw it in the green 300SD and voila cruise control back.

I actually took out the green SD's cruise unit and its a different model. There are few difference between the two boards though, namely three resistors that are on raised solder points. I believe these are akin to the coding plugs of the 005 variants.

I'll post up pics later. Interesting stuff.
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Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
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  #24  
Old 03-27-2012, 08:43 PM
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Location: NE Ohio
Posts: 4,440
I was taking apart my 420SEL's cluster to repaint the needles and found this:

8075 Impulses per Mile. or
12,920 Impulse per kilometer



This seems to agree with my original claim that the coding plug has to do with impulses and "setting" things internally for the signal type.

Based on this listing in a VDO PDF Catalog:



I'll have to pull on the of the SD's clusters and see what it says on the back of it. Probably will have to be the gold SD as the green one is a DD.

I found this on my 300SD:

K=10,240. It doesn't say miles or Kilometers. If we assume its in miles as the 420SEL was, then you get K=16,384 impulses per kilometer.

So in theory, If i sourced with the x4 or x5 one of them should get a newer coding style unit working on my SD..




If anyone has their cluster out of their car, can you let me know if you have a K value sticker on there?
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

Last edited by JamesDean; 03-27-2012 at 09:31 PM.
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  #25  
Old 06-03-2012, 09:48 PM
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Quote:
Originally Posted by JamesDean View Post

Here's some pictures in case yours is bad and you need to replace the resistors.






If you have any questions or comments let me know.

None for the 124 cars?

Thanks
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1990 300E
1991 300E
2003 Corvette Z06
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  #26  
Old 06-04-2012, 12:35 AM
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Quote:
Originally Posted by brewtoo View Post
None for the 124 cars?

Thanks
I have several 124 car coding plugs. I can take pictures and post, which car are you interested in specifically?
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
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  #27  
Old 06-04-2012, 12:43 AM
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The 1991 124.030

Thanks!
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1990 300E
1991 300E
2003 Corvette Z06
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  #28  
Old 06-04-2012, 01:46 AM
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Quote:
Originally Posted by brewtoo View Post
The 1991 124.030

Thanks!
Here you go!

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
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  #29  
Old 06-04-2012, 03:27 PM
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Location: AL
Posts: 1,212
What do these coding plugs tell the controller?

I have used different ones in my 300E and they all seem to work....
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1990 300E
1991 300E
2003 Corvette Z06
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  #30  
Old 06-04-2012, 03:40 PM
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I'm sure James can shed more light than myself, but I fully expect that the combination of resistors basically sets up the unit, for a particular gear ratio or some such.

The ignition system on the early 124 gassers works a similar way. There is a resistor that plugs into a socket near the master cylinder. The resistance provides a setting for a particular maximum ignition advance. Remove it and you get max ignition advance but premium fuel is required. Different resistances retard ignition to different levels for use of different fuel grades.

Some ROW cars have a dial in the resistors place so that you can set for different octane ratings. This is a more necessary feature in some countries were high grade fuel is difficult or impossible to obtain.

Sorry for the diversion from the thread subject.
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Old 06-04-2012, 03:40 PM
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