BENZ AID - COMMON QUESTIONS AND ANSWERS

Vacuum Routing - 1983 300sd

Hey Kent: The vacuum book has help alot,but I have a problem that I cannot find help anywhere. The 3/2 valves are really 2 on top of one another. When I got the car several of the curved lines were rotted,and where they plug into the plastic 5-way connector ( which the rubber conector plugs into) was missing tits. So I used the diagram for the 80 to 81 300D and 240D trying to get the vac working right.I stopped the clunking slowing down to a stop.1,2,an 3rd shift ok but early,but 4th wants to slip then shift. Unless you drag race,it shifts fine.So I drive her in 3rd and shift to 4th on my own. Will the diagram I used work?

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Chassis Model Number

W126

removing the glovebox door lock on an '85 300D

I need to remove the lock on the glove box door in order to replace the wood trim strip. I got the black plastic glove box inner liner off. The sliding plastic lock appears to have four tabs that lock it in place in the sliding track. I tried to push in those tabs with a screwdriver, with no success. Is there some trick to removing the sliding lock piece?

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240D Speedometer Inaccurate

Hello, I have a 1983 240D, manual transmission. The Speedometer seems to read about 8 - 12 miles slower than the real Speed. The wheels on the car are OE. I have had the car since about 130,000 miles. It now has 150,000. The previous owner said this has been a long running issue that they never bothered to look into. I get confused sometimes at my real speed (especially if the police are behind me!). Any tips on what I should do? Replace cable? Or replace Speedometer? Thanks!

Chassis Model Number

W123

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SPEEDOMETER/ODOMETER FAILURE ON 76 300D

THE ODOMETER AND SPEEDOMETER RECENTLY QUIT WORKING ON MY BENZ. RIGHT BEFORE IT COMPLETELY QUIT, I NOTICED THE NEEDLE FOR THE SPEEDOMETER BOUNCED AROUND ALot, then...nothing. some of the lights, such as glow plug, brake sensor and battery lights still work, but the regular illuminary dash lights do not. I replaced the bulbs, but still no light. Also the old becker radio did not work and i pulled it out, but can't seem to figure out what config. to hook up a cd player. could the radio issue be related to the failures on the instrument cluster?

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Chassis Model Number

W115

1982 300d auto tran. electrical switch issue, won't start, help!

I just replaced rear transmission mount and installed new transmission linkage bushings with your kit. All went great!

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Chassis Model Number

W126

350SD: Car shakes heavily at low idle once warmed up.

Hi, My wife has a 350SD (W126 - 1991) with 146k miles. We have had it only for the last 15k miles or so. The car has developed a strong throbbing, low frequency vibration or shaking (the whole car) when stopped at a stop light (for example) after it has been driven for a while and is well warmed up. It is slightly noticeable, but much less severe, when started up from cold. Otherwise, the engine seems to run smoothly and be OK at higher RPMs. I have noticed that the idle speed drops a little from, >6500 to

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Chassis Model Number

W126

starting problem

I have a 76 300D that I am having a strange problem with. Usually the car will start without any problem two or three times, and then it will appear that the battery is too weak to even make the car turn over, although the headlights and other electronics still seem to be at full power. I have had the alternater tested and it seems to be working fine. I took the battery back to Wal-Mart and their machine (as well as AutoZones) found the battery to be good.

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Taxonomy upgrade extras

Chassis Model Number

W115

Restoring black plastic door handles

I found out on the net,how to restore your black door handle and mirrors,that overtime armorall has turned white. Good old peanut butter.Apply leave on 5 minutes or longer,and wash off.It lasted so far 4 washing,and 6 weeks. To expensive to try on tires. Makes everyones hands smell good too.Just kidding. Peanut Butter,the oils must be good for plastic,I might try peanut oil. Might be cheaper. Nate in TN P.S. Don't use if you expect someone in your car,with allergy to peanut butter.Be neat if a car jacker was allergic.

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grease for a window regulator

This is about window regulators, specifically on my 1980 300SD (W116). The drivers side window regulator is broken, and MercedesSource has a new replacement for it, but no instructions available with the new part. After examining the broken regulator, I believe that a lack of grease (or lubricant) on the regulator slides contributed to the failure. Further, my other windows are moving slow or binding up, and I suspect that lack of lube is responsible for that slowness as well. Trouble is, I don't know what grease to use on the regulator mechanism. Grease isn't just grease. It's formulated to work at a certain temperature, under specific conditions, and I'd bet the grease on a window regulator is altogether different than wheel bearing grease, for instance.

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