Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 03-14-2002, 10:49 PM
Posts: n/a
Auto Tran Fluid Overfill???

Took my car to Jiffy Lube for oil/filter (normally go to a Euro shop, was in a hurry). They mentioned the usual oil and tranny leaks and sent me on my way. I haven't checked the tranny fluid level since I acquired the car last fall. I searched this site and my owners manual, both of which confirm that I should be reading a fluid level of 10mm below the min line (I assume it's the lines at the very end of the stick) when engine is cold. I go to check the fluid on my cold engine (not driven in the last 3.5 hours), and discover a tranny flud level 20mm OVER the max line. Now from what I have read on this site, overfilling is a very bad thing. I don't think the Jiffy gang did this (heck, I think this was there first Mercedes to change the oil, much less know where the tranny check is), and therefore I am assuming I've been driving around like this for some time. Am I missing something? Fluid is a medium red, doesn't appear dirty. My shifts are abrupt under normal acceleration, made less abrupt if I slightly lift off the gas right before the auto's next gear shift.

I plan to do the more accurate check in the morning with the engine idling after a few minutes. But how quickly do I need to drain off the potential excess, if this is truly an overfill condition? I'll be pretty unhappy if the Euro shop from my previous fluid service is to blame

Reply With Quote
Old 03-14-2002, 10:58 PM
Mike Murrell's Avatar
Registered User
Join Date: Feb 2000
Posts: 2,357
Let the car sit overnight on a flat surface. The dipstick has a low and high mark near the botton end that slides down the tube.

Start the car in the morning. Pull the stick out and wipe clean with a very clean lint free cloth. Stick back in. Hold for a few secs. and remove. The fluid level should be about 10mm below the lowest mark on the stick - the low level line.

To test the hot fluid level, drive car at least 15 miles. I prefer 20.
Do the same thing and while idling on a level surface. This time the fluid level should be no higher than the highest mark on the stick.
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
Reply With Quote
Old 03-15-2002, 12:08 AM
renok7's Avatar
Registered User
Join Date: Nov 2001
Location: Montréal
Posts: 95
As the FRAM commercial goes: you can pay me now ($) or you can pay me later ($$$$$$$$$$).

When I bought my '93 300E two years ago the first thing I did was to have all the fluids changed including the tranny. I wasn't all that expensive and I was assured that my newly acquired vehicle's innards were clean.

'93 300E 4Matic
'98 Nissan Altima
'00 Yamaha Road Star Silverado
Reply With Quote
Old 03-15-2002, 09:57 PM
Posts: n/a
Granted on the fluid change. It was done recent enough that I'm still showing good red color on the dipstick. The previous owner was an extended family member, so I am comfortable with the service history.

I rechecked this afternoon after a short drive. Got an accurate, between the marks reading this time. I'm not sure what happened on the cold reading. Got the same +20mm after several readings when cold. Anyway, note to self to do checks with idling, warm engine.
Reply With Quote
Old 03-16-2002, 12:20 AM
David C Klasse's Avatar
CheFrac is Back!
Join Date: Jan 2001
Location: Mission Hills in the City of San Diego
Posts: 2,352

FOr the time being... I'd atleast try and siphon some out!
2006 E350 w/ 155k miles (Daily Driver)

1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
transmission fluid and cracked lines tunk Tech Help 4 04-24-2003 02:35 PM
Brake Fluid Change Interval suginami Tech Help 8 02-06-2002 07:34 PM
Anyone mix auto tranny fluid with diesel? Elripster Diesel Discussion 4 06-19-2001 06:54 PM
89 300E auto trans - time to change fluid yambrovich Tech Help 11 12-07-2000 03:35 PM
Synthetic auto transmission fluid Nick Jamal Tech Help 5 01-19-2000 08:17 PM

All times are GMT -4. The time now is 02:07 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page