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1974 280C 1991 190E 1986 E-150
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66 Posts
Discussion Starter #1
My 190E wont shift out of lower gears, with tach at 6k only will go 35mph. I checked the vacuum line, all is sound there, how can I tell if it fixable or totally shot?


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1991 190e 2.6 automatic
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760 Posts
first makre sure that your transmission oil level is good

it should be checked while the car is running, in Park

if it is low, put some in..

make sure all your throttle/transmission cables are properly adjusted and all the vacuum lines are plugged in and not leaking




if it is ok

next thing i would do is try to change the filter, and while you are there, change the K1 PISTON spring which is one thing that can cause this problem..


if that doesnt solve it, you might need to take it to a shop
 

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1974 280C 1991 190E 1986 E-150
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66 Posts
Discussion Starter #3
Where, and how would I hange the k1 piston? And where would I get one at?


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1991 190e 2.6 automatic
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760 Posts
there is a thread here somewhere for the k1 piston

it includes the part number and how to do it


it is easy.. after you pull the transmission pan off, it is 2 or 3 screws that you have to take out, and the spring comes out

so change the tranny filter, k1 spring and put new oil in.... atf or dexron 2-3

or anything good synthtetic
 

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1984 190D 2.2
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2,458 Posts

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2009 ML320 & 1984 190D
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229 Posts
I doubt if the K1 is the issue, as it controls the 2/3 shift..

A trans that is stuck in low or #1, I would look at the Governer...
 

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2009 ML320 & 1984 190D
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229 Posts
The governor is located on the left side of the trans at the rear under the smooth circular cover.
It is a bob-weight kind of thing that is driven from the output of the trans.
It other words, it senses road speed, and tells the transmission when to shift up and down.
My son had a governor gear failure, and it was stuck in 1st...
 

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1997 S420
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341 Posts
Not trying to thread jack, but is it normal for the car to do this when the "shift to first gear before taking off" trick is used? I was told that a certain year and above of W201's never shift all the way down to first gear when coming to a stop,it just stays in 2nd.... I have tried this many times and this is what I get... Pedal to the floor-RPM reaches around 10K-DOWNSHIFTS- THEN does NOT upshift UNTIL I let go of the pedal.... Lol? I can hold the pedal down to reach all the way to redline, but I let go before damage occurs. It makes me feel like i'm driving a manual. o_O
 

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Five MB's: 1986 190E, 5spd ; 1987 300SDL; 1995 E320 Estate ; 1991 300D; 1993 300D
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76 Posts
I am in agreement on the Governor, specifically the helical gear on the governor. Assuming you have the 722.4xx transmission.

The helical gear was some sort of plastic. They age, harden, crack then disintegrate.
Loss of upshift is tell tale.

Replacement gear is about $10.

We just experienced this on our 93 300D 2.5. While I am told you can do the replacement with the tranny in the car on the W126 models, not enough room on the W124's and I suspect same on yours.

Due to the R&R os the tranny, you may consider replacing seals while it is out.

Lots cheaper that a rebuilt tranny.
 

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93 190E 2.6; 82 300 SD Turbo
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1,687 Posts
I am in agreement on the Governor, specifically the helical gear on the governor. Assuming you have the 722.4xx transmission.

The helical gear was some sort of plastic. They age, harden, crack then disintegrate.
Loss of upshift is tell tale.

Replacement gear is about $10.

We just experienced this on our 93 300D 2.5. While I am told you can do the replacement with the tranny in the car on the W126 models, not enough room on the W124's and I suspect same on yours.

Due to the R&R os the tranny, you may consider replacing seals while it is out.

Lots cheaper that a rebuilt tranny.
It can be done with the trans still in the car on the 124. Not sure about 201. I just expereienced the same thing with my 91 300D 2.5... Stupid ass plastic gear on the governor broke in half. Also damaged the drive gear on the outputshaft.

I came across this thread on PeachParts and decided add to it:
'91 300D trans stuck in 1st gear... - Page 3 - PeachParts Mercedes ShopForum

I've just got to reassemble the driveshaft and exhaust now and give it a real test.
 

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Five MB's: 1986 190E, 5spd ; 1987 300SDL; 1995 E320 Estate ; 1991 300D; 1993 300D
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76 Posts
Sega,

I do not know the part number, but I believe the dealer will be very familiar with it. You might also need the output shaft gear as well.

I can't tell you much more as we had a shop do the work. They elected to replace the entire governor.

I think r&r of the gear on the governor may require a special tool to remove the retaining clip, but I do not know.
 
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