Will shifting an auto manually always override a vacuum leak or flairing.

In other words, my 300 d has a vac leak, but shifts perfectly every time manually.

It started flairing in 3rd but I can shift manually every time with 0 flair at all.

Thanks,
Revolverman.

Do you have a apply chart for this transmission?

I don't know about yours specifically, but some transmissions have overrun bands / clutches that apply only when the shifter is moved below drive. When manually shifting, you might be feeling a bind on the 2 - 3 shift rather than a good shift.


In any event, fix the cause of the flare.

Some of the advertising material I have on 1980's Mercedes models specifically indicate the automatic transmission can be shifted manually. Is there something different in these transmission that allows this - and is it OK to do on a regular basis? (that is, if it isn't a modern electronic Tiptronic-type that is designed for this). I know of someone who manually shifted his older Chevy transmission and destroyed it in a short time.

I think it's more fun to drive a Mercedes with a manual transmission - shifting an automatic manually might be a good compromise on models that weren't available with a stick shift.

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1976 240D "Katja"

In the words of Stu Ritter, a Mercedes master tech who was on a previous list I frequented, when asked the same question: "Go ahead, shift, shift."

Just use common sense.

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22

As long as you do not go beyond the allowed vehicle speed per gear, you'll be fine.

For example, don't shift into S or 3rd gear when you're driving at 70mph on the freeway.

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^^Yup

Just watch the little dots around the speedometer: 62mph-ish is the max for 3d

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$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment

My 300TD will flare going from 3rd to 4th, but only if the road speed is less than 40 mph. If I put it in "S" and then manually upshift to 4th once I exceed 40, it shifts perfectly.

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1981 Mercedes 300TD, 1994 Honda Civic Del Sol
http://mefi.us/images/fuelly/smallsig-us/67195.pnghttp://mefi.us/images/fuelly/smallsig-us/103885.png

I think there's a lock out for neutral and reverse that kicks in at about 10kph - but - isn't there one for that situation too? (I don't know - he says in best Scooby Doo voice)

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

That's "Rye ron't row!"

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

From my understanding, you can switch to Neutral in case of emergency, but not into Reverse.

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