|
|
|
#1
|
|||
|
|||
when did MB go computer controlled?
I hear all kinds of horror stories about $1000 wiring harness in later models, and computer problems in them also. When did all these problems begin to arise? I am looking to get a second MB, but I dont want anything with those problems.
__________________
1996 E300 D 1992 300D 1990 Ford E-350 7.3 Diesel AKA "the Deep Fryer" |
#2
|
|||
|
|||
The first MB diesel in the USA with computer controlled "anything" was the 1984 300DT california version.
The first completely computer controlled MB diesel in the USA was 2005 CDI. The wiring problems were on 1992-96 cars.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
|
|||
|
|||
Like most things in life you've got to pick your poison.
I like the computers in my 99. Provides me all kinds of data when truobleshooting.
__________________
Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
#4
|
|||
|
|||
The 1996 thru 1999 were somewhat computer controlled as they had to meet ODB2 specs.
But they still used a mechanical injection pump. The computer was for emissions like EGR & for boost. The 1998-99's were the BEST of the later non-CDI diesels!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#5
|
||||
|
||||
The OM606 diesel used in the 96-99 MBs is 100% computer controlled. There is still a mechanical injection pump, but the fuel rack for that pump is controlled by an electronic actuator. There is no mechanical governor.
All of the OM60x diesels have idle speed regulation of some kind. The 90-93 300D 2.5T has an electronically controlled wastegate (vacuum actuator, where the vacuum is electronically regulated). There's more... but thats all I know off the top of my head.
__________________
John Robbins '05 E320 CDI - 240k '87 300TD - 318k |
#6
|
|||
|
|||
well i love the information you can get from the computers, just trying to avoid computer breakdowns I hear are fairly common, and expensive in the mid to late 90's. I love the cars, just lookin for the best ones.
__________________
1996 E300 D 1992 300D 1990 Ford E-350 7.3 Diesel AKA "the Deep Fryer" |
#7
|
|||
|
|||
I don't believe this is the case with the '96 and older diesels. I know mine has a vacuum-controlled transmission and the accelerator pedal is mechanical, i.e. there's no pedal position sensor, just a good old cable.
__________________
2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#8
|
||||
|
||||
I love the OBDII cars, plug in and they tell you whats broke. It takes all the fun out of trouble shooting!
My buddies 98 E300D is cake to fix. CE light comes on, scan codes, replace FUBAR part, reset, keep going. On my SDL you actualy need so skill to figure out what is broke. I'd actualy prefer a more modern car that you can plug a laptop into, and really see whats going on. Can you do that with the W211's?
__________________
1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#9
|
||||
|
||||
Hmm, hook up the laptop, pop in the FSM CD and it'll even show you how to fix it.
Now that'd be an idea. Personally, I'd just prefer a car that doesn't need a computer to fix it.
__________________
DJ 84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012 |
#10
|
|||
|
|||
Its fine for cars to have a CAN system where independent systems can diagnose faults based on a string of inter-networks. But once that stuff gets old, they're a throwaway unit. And some of the black-boxes that fail have to be programmed SPECIFICALLY for the car! No more swap and drop, guys!
__________________
1987 300SDL (324000) 1986 Porsche 951 (944 Turbo) (166000) 1978 Porsche 924 (99000) 1996 Nissan Pathfinder R50 (201000) |
#11
|
|||
|
|||
You make it sound so easy. I wish it were like that! Most of the issues that I've had showed no codes at all.
__________________
2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#12
|
|||
|
|||
You dont HAVE to use the info the computers provide. It's acceptable to ignore its clues and stand around scratching your head wondering what in the heck the problem is like the old days......
__________________
Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
#13
|
|||
|
|||
Get a Mercedes diesel old enough to avoid computers and you'll be paying for transmissions, HVAC systems, etc., instead. And, you ought to replace all the suspension rubber, too.
__________________
Kent Christensen Albuquerque '07 GL320CDI, '10 CL550. '01 Porsche Boxster Two BMW motorcycles |
#14
|
||||
|
||||
you have to give up some things for the other...
OBDII or good trouble shooting give me OBDII any day |
#15
|
|||
|
|||
Quote:
Your injection pump has no mechanical linkage of any kind. |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|