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  #1  
Old 10-06-2010, 04:48 PM
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Join Date: May 2010
Location: Austin, Texas
Posts: 241
Cruise control fix(ed)

So i finally got my cruise control working, for the most part.

it only works at 60+ mph, i can get it to accelerate using the cruise bar/switch/thing and it will only stay engaged 1/2 the time and the other 1/2 of the time is stumbles between accelerating and maintaining a constant speed.

i imagine the cruise module is on its way out, or possibly that the linkage is has some slack in it that needs to be taken up.

suggestions?



84 300D

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  #2  
Old 10-07-2010, 04:38 AM
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Location: PA
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There is a guy in CA that rebuilds them. I don't have his e-mail right now because my puter is not available. Maybe someone else here knows his e-mail address.

Do U have the new style cruise control? Person mentioned above says new style only good for 150,000 miles then needs to be rebuilt?

P E H
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  #3  
Old 10-07-2010, 06:03 AM
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http://gdl-online.com/begin.html

I strongly recommend that you get actuator evaluated along with amp as amp failure can be caused by a bad actuator.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife
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  #4  
Old 10-07-2010, 07:30 AM
Craig
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Quote:
Originally Posted by shertex View Post
http://gdl-online.com/begin.html

I strongly recommend that you get actuator evaluated along with amp as amp failure can be caused by a bad actuator.
Yup, it's best to just replace both at once.
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  #5  
Old 10-07-2010, 07:54 AM
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Quote:
Originally Posted by Craig View Post
Yup, it's best to just replace both at once.
GDL will evaluate both actuator and amp for $60. If actuator is OK, then you only need to fix amp.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife
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  #6  
Old 10-07-2010, 08:58 AM
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GDL is the recommended place to have them repaired if you want to keep the stock set up.

Take a look at the Audio Vox ccs-100 install. several have used it with favorable results

www.peachparts.com/shopforum/showthread.php?t=219993

Charlie
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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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  #7  
Old 10-07-2010, 08:58 AM
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Location: Streetsboro, OH
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Mine will engage and hold for 2 or 3 minutes, then it fluctuates. Feels like I am running out of fuel and then it stops altogether. I purchased a used amp from Dave Hendy, but I have not installed it. I did not want to burn it up if the actuator is bad. Is the actuator the device behind the IP with all the linkage connected to it?
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1987 300D 146K Original #14 Head
One eye on the road, the other on the temp. gauge

Gone But Not Forgotten
1983 380 SEL Long gone
1983 300SD Wish I hadn't traded it in on a 90' Corvette
1989 300SE My all time favorite
1995 E420 Went like a bullet
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  #8  
Old 10-07-2010, 09:00 AM
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Quote:
Originally Posted by Tpawlik View Post
Mine will engage and hold for 2 or 3 minutes, then it fluctuates. Feels like I am running out of fuel and then it stops altogether. I purchased a used amp from Dave Hendy, but I have not installed it. I did not want to burn it up if the actuator is bad. Is the actuator the device behind the IP with all the linkage connected to it?
Yes.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife
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  #9  
Old 10-07-2010, 07:11 PM
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It still amazes me that the VDO system in the mercedes has problems almost 100% of the time, but the VDO system in VWs and Audis, which is vacuum based with its own separate pump, still works most of the time with the most common failure being a torn vacuum bulb on the throttle.

I've fiddled around with my cruise system a bit, I cleaned the potentiometer inside the actuator and reflowed any marginal looking solder joints in the amplifier. That got the cruise working great... for about 3 hours. I guess now it's on to replacing capacitors...

-J
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Tesla Model 3. 205,000 miles. Been to 48 states!
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  #10  
Old 10-07-2010, 07:14 PM
Craig
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Originally Posted by shertex View Post
GDL will evaluate both actuator and amp for $60. If actuator is OK, then you only need to fix amp.
I know, but the last time mine acted up I didn't want to wait so I just ordered a new actuator and a rebuilt amp from GDL. That was a few years ago and it's been perfect ever sense.

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