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98 ML320 Flashing Low range

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Old 07-02-2010, 06:00 PM
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1998 ML320
98 ML320 Flashing Low range

My low range flashes at start up, so I checked codes and it reads a P0700 trans mod. malfuntion. I tried to put in low to sync/reset shift motor. (but it just blinks and stays off). What could cause this? Transfer case shift motor or what? I am fixing myself. Help Please!
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Old 07-19-2010, 10:31 AM
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Can someone help me my 98 Ml320 is stuck in "Low Range"
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Old 07-21-2010, 11:44 AM
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change the transfer case motor, parts labor total should be around $350...
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Old 07-21-2010, 07:22 PM
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1998 ML320
Low Range Flashing

I have purchased the motor for about 170.00 and put it on myself ran the sequence to set sync it and still no luck. I sent it to my dealership yesterday. Found it to be the trans module (brain) has been compromised and needs to be replaced. I was also in the last few days getting a P700 fault (trans control mod) indicator lamp request that would go off and on. I will get my truck back Friday and will let everyone know.
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Old 07-21-2010, 10:35 PM
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Thanks for the info, any clues on best place for parts.
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Old 07-31-2010, 07:49 AM
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Sorry i just say your post you did not have to take it to the dealer or buy anythink the motor was just stuck an easy fix would have take 1 min.
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Old 02-04-2012, 10:42 AM
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Unhappy ML320 98 Low range blinking 4 times and off.

hello there I'm having the same problem here the Low range blinks 4 times and then just stays off after that!.
please any help is greatly appreciated!,
someone told me is a fuse or the Low rage case?
any suggestions?
thanks for your time and help guys!.
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Old 02-04-2012, 01:53 PM
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Originally Posted by lito420 View Post
hello there I'm having the same problem here the Low range blinks 4 times and then just stays off after that!.
please any help is greatly appreciated!,
someone told me is a fuse or the Low rage case?
any suggestions?
thanks for your time and help guys!.
What usually happens is the Low Range feature is rarely used and the motor becomes dormant and needs a little help to get started.

You will need two people to try this. Chock two wheels and set the emergency brake and follow instructions for activating the Low Range. With you under the truck, have someone push the switch and then you tap the motor a few times with a light hammer. This might have to be done a few times to get it going.
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98 ML320 Flashing Low range-2012-02-04_134345.jpg   98 ML320 Flashing Low range-2012-02-04_135238.jpg  
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Old 02-05-2012, 01:26 AM
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Unhappy ML320 98 ETS/P0410 Code +Low range blinking 4 times and off.

My problems keep getting worst
now my 98 Ml320 is giving me the (P0410 code) and having the ETS light on! and still can't get the low range to work! is just blinking 4 times and then goes off!, tried the hammer trick without any luck!
any advise on how to do it your self is greatly appreciated!
I love this Suv, but Labor for repairs is just to expensive for our Family right now,
Thanks for the Help
any suggestion to solve this problems is welcome.
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Old 02-05-2012, 05:44 AM
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With the key on, and with a test light check fuses 8 and 22.

Try this procedure:

Eng. running and shift into N.
Remove foot from brake.
Push the switch.
Step on brake.
Push switch again.
Shift into P and turn eng. off.
Perform process again and see if it works.

Besides code P0410 are there any other codes listed?

Is the ETS light the only one on?

Do you have a scanner and what kind?
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Old 02-05-2012, 12:08 PM
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Smile

it's having a bunch of misfires on 3 cylinders that and the P0410 and low range blinking 4 times and off,
I'm getting the spark plugs and wires replaced this week,
that might do for the misfires the suv has 87XXX miles on it and it's been always serviced on time,
the scanner was my friends is one of those new ones that connect to your ipad,
thanks for the advise will try it out today and let you guys know what happens.
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Old 02-05-2012, 03:17 PM
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Just tried the shifting secuence without any luck
still hae the ETS on and low range flashing 4 times and off!, thanks for the suggestion
any one else with good ideas
Thanks for your help in advance
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Old 02-06-2012, 07:11 AM
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Originally Posted by lito420 View Post
Just tried the shifting secuence without any luck
still hae the ETS on and low range flashing 4 times and off!, thanks for the suggestion
any one else with good ideas
Thanks for your help in advance

For now forget about the Low Range problem. The important thing is to find the misfire problem. Misfires ruin cat. converters.
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Old 02-06-2012, 10:59 AM
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Red face

I think your right thanks for the input!,
I already fear the worst,
this is what the scan says, misfires cylinder 4,5 and 6, code P0410,
secondary air pump/air injection system,
I found this video of a guy saying is my Cat, Just wanna make sure it's not something else before I try and replace my existing ones they are pretty expensive, here is the link:

http://www.youtube.com/watch?v=MTfXpwa3leE


I haven't check for pressure leak if someone knows of a DIY guide please point me to it,
any advise is greatly appreciated,
thanks for your time and help guys.

ML320/98.
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Old 02-06-2012, 11:11 AM
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Originally Posted by lito420 View Post
I think your right thanks for the input!,
I already fear the worst,
this is what the scan says, misfires cylinder 4,5 and 6, code P0410,
secondary air pump/air injection system,
I found this video of a guy saying is my Cat, Just wanna make sure it's not something else before I try and replace my existing ones they are pretty expensive, here is the link:

http://www.youtube.com/watch?v=MTfXpwa3leE


I haven't check for pressure leak if someone knows of a DIY guide please point me to it,
any advise is greatly appreciated,
thanks for your time and help guys.

ML320/98.
Save yourself the money and use it towards the car. You do not need new wires and plugs.


The reason you are getting code P0410 is because of the back pressure caused by the bad cat. Have it replaced and all your problems will be over.

Last edited by Maj. Dundee; 02-06-2012 at 11:35 AM.
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Old 02-06-2012, 11:31 AM
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Originally Posted by lito420 View Post
hello there I'm having the same problem here the Low range blinks 4 times and then just stays off after that!.
.
When mine did exactly the same thing, i just replaced the motor and it was fine after that. The motor change is 'plug and play', no coding required.

ps...... when i opened up the old motor, it was full of water!!!!

Last edited by alphonsohall; 02-06-2012 at 11:33 AM.
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Old 02-06-2012, 05:42 PM
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Red face

When mine did exactly the same thing, i just replaced the motor and it was fine after that. The motor change is 'plug and play', no coding required.

ps...... when i opened up the old motor, it was full of water!!!!

thanks alphonsohall I will be buying a new motor and will replace my self
can you point me to a DIY guide on replacing the low range motor?

Maj. Dundee wrote:
Save yourself the money and use it towards the car. You do not need new wires and plugs.


The reason you are getting code P0410 is because of the back pressure caused by the bad cat. Have it replaced and all your problems will be over.

thanks for the advise I was told that already but just wanted to see if someone had experience with this issue and have repaired before,
I don't wanna end up paying for Cats and end up with the same problem.
thanks for the input though
Please if anyone knows something else about the P0410
misfire in 4,5,6 and ETS light on ML320 98 please let me know
all advise is greatly appreciated
thanks for the help in advance guys.
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Old 02-07-2012, 01:08 AM
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Red face ML320/98 misfire 4,5,6 and P0410.

Hello everyone I just wanted to share my progress and ask for advise,
Today I when under my ML320 and took one of the O2 sensors
I turn on the engine and it's working well now but with the sensor out?
will this mean my Cat is clogged? or is just a bad sensor?
I really don't even know if what I did was good or ok but not a real mechanic
just trying to save some money for the family and also take care of our suv,
if someone knows or had the same issue feel free to comment
thanks for helping guys.


ML320/98
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Old 02-07-2012, 05:11 AM
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Originally Posted by lito420 View Post
Hello everyone I just wanted to share my progress and ask for advise,
Today I when under my ML320 and took one of the O2 sensors
I turn on the engine and it's working well now but with the sensor out?
will this mean my Cat is clogged? or is just a bad sensor?
I really don't even know if what I did was good or ok but not a real mechanic
just trying to save some money for the family and also take care of our suv,
if someone knows or had the same issue feel free to comment
thanks for helping guys.


ML320/98
Removing the O2 sensor gives the exhaust another way to escape. It should be going out the tail pipe but because the cat. is clogged, it cannot. The O2 sensor is fine. The cat. needs replacing.
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Old 02-07-2012, 05:56 AM
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Hi, Replacing the motor is very easy, just crawl under the car to the rear of the transfer case and unplug the motor electric plug, undo the 3 (or 4) bolts that secure the motor to the transfer case and replace with the new one. 15 minutes!
It is plug and play, no coding necessary.
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Old 02-10-2012, 08:45 PM
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you dont need to buy anything for the low range light it takes just one min. to fix . send your email address to [email protected] and i will send instruction
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Old 02-12-2012, 07:13 PM
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Originally Posted by quenjam View Post
you dont need to buy anything for the low range light it takes just one min. to fix . send your email address to [email protected] and i will send instruction
Hello there Quenjam
I already emailed you,
still waiting for instructions
thanks for the help in advance
I will make sure to keep everyone posted on this one,
will share the solution too,
thanks.
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Old 02-13-2012, 04:42 AM
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Originally Posted by quenjam View Post
you dont need to buy anything for the low range light it takes just one min. to fix . send your email address to [email protected] and i will send instruction

Lito, i'd be wary about the above if i were you.........
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Old 02-13-2012, 06:05 AM
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Originally Posted by lito420 View Post
Hello there Quenjam
I already emailed you,
still waiting for instructions
thanks for the help in advance
I will make sure to keep everyone posted on this one,
will share the solution too,
thanks.
Here are the instructions.
Attached Files
File Type: pdf
R&I Transfer Case Motor.PDF (184.9 KB, 2074 views)
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Old 02-13-2012, 10:16 AM
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Originally Posted by Maj. Dundee View Post
Here are the instructions.
Thank you so much for the instructions
they will help me a lot!
and also thanks to everyone else that help me here on the forum
you guys are awesome!!!.
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