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  #1  
Old 10-03-2004, 02:47 AM
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230E Cold Start and Transmission Problem

Hi All,

1. I bought a 230E 89 Model, and has a problem of cold starting. I do the cranking for almost 5 seconds to make the engine start in the morning, but rest of the day is fine. Please Help.


2. While I am going at 65kph, it shifts up to 4th gear and that is normal, but when i reduce to 45kph, she remains in 4th and doesn't shift down to 3rd until 40kph even if I floor the pedal. The only way to shift down is kick-down that shifts down to 2nd and that is very annoying, the RPM boosts to 4500. Please help me. Can we adjust kick down do shift down one gear, not two.

3. Shifting up is not smooth, especially 1st to 2nd makes a considerable jerk, but there is no slipping. Help

Regards.
Shams
shams13@msn.com
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  #2  
Old 10-14-2004, 02:11 AM
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problem 2 was the S/E switch, it was not working. by the way now it is working but going at 90km/h if i floor the gas pedal (not kickdown) the car comes down to 3rd gear and reachs 120km/h and then shifts 4th.

Is this normal???
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  #3  
Old 10-14-2004, 09:21 AM
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yal yal is offline
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If your tranny fluid is ok and has been changed on schedule then....
In the engine bay look for the end of the throttle cable. You should see it on the left side of the engine (left side from the drivers chair that is) just under the air cleaner. You should see a white plastic wheel with a black plastic pointer. I need to take a picture to really show you. But you need to adjust the pointer until the black arrow points to the groove in the middle of the wheel. Your shift points should change.

The cold start may be a problem with your cold start injector but I would check the spark plugs and wires and dist cap for age and run a bottle of injector cleaner first.
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  #4  
Old 10-14-2004, 09:31 AM
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Thanks Yal,
I changed my plugs, how to check that coolant temp sensor, may be this is causing the problem of col start.
what is the injector cleaner.

regarding your solution of adjusting the throttle cable, what is this for becoz i asked a lot of question about the transmission.

One more this, regarding the jerk in shifting up, can vaccum modulator help, and wher is it located. By the way i haven;t changed the AT fluid and filter for last 3 months and is it necessary to put a good fluid or ordinary ATF will do its job.

shams
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  #5  
Old 10-14-2004, 09:42 AM
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Location: York, PA
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I put the chart on how to check the Engine Temp Sensor in the EHA thread below, it is for an M102 and M103 engine, which I would think you have the M102 engine on yours.

As for the vacuum modulator it is on the left hand side of the transmission. Mine jerks as well when floored and Kickdown is engaged from 1st to 2nd. Not during a normal shift which occurs at 4000 RPM on my 190E. I always attributed it to an issue with the low gearing for 1st gear shifting at high RPM to the next gear. I get a tire chirp on mine and spinning in adverse weather conditions.
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~Jamie
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2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....
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  #6  
Old 10-14-2004, 09:47 AM
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hi. mctwin2kman
Where is the chart. I have M102

Also mine jerks normally on shift up not on kickdown. Flooring pedal making 120Km at 3rd, is it normal?
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  #7  
Old 10-14-2004, 10:38 AM
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The Chart of temps follows!

-20 15.7KOhm
-10 9.2KOhm
0 5.9KOhm
10 3.7KOhm
20 2.5KOhm
30 1.7KOhm
40 1.18KOhm
50 840Ohm
60 600Ohm
70 435Ohm
80 325Ohm
90 247Ohm
__________________
~Jamie
_________________
2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....
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  #8  
Old 10-14-2004, 10:41 AM
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Quote:
Originally Posted by shams13
hi. mctwin2kman
Where is the chart. I have M102

Also mine jerks normally on shift up not on kickdown. Flooring pedal making 120Km at 3rd, is it normal?
Depending on RPM at the shift and gearing. That is about 75 MPH and mine shifts about 80 MPH which is 128KPH. Mine shifts from 3rd to 4th at just below redline.
__________________
~Jamie
_________________
2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....
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  #9  
Old 10-15-2004, 10:46 AM
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One more thing mctwin2kman,

going at 3rd at low speed such as at 65Km/h or below, as soon as i take off my foot from the gas pedal, it shifts 4th. Why is this?would adjusting vacuum modulator help in this case.

car should be driven at high RPM or Low. Which is better.

Would changing ordinary ATF with good fluid(synthetic) and filter help in smooth shift.
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