Mass Airflow Filter - Can anybody help?
Thread Starter
Newbie
Joined: Jul 2007
Posts: 8
Likes: 0
From: England
1999 ML 320
ML320 spluttering - Any Ideas Why?
I have a 99 ML320. It has started running a bit rough, spluttering when accelerating hard and does not seem to rev much over 3500 rpm particularly when going uphill.I have read some of the posts on here and purchased some new plugs, leads and a new airflow sensor. I am going to try and replace these items myself.
If I replace the airflow sensor does something have to be re-programmed for the new sensor? Also, could changing the above sort out my problems. I am on a bit of a tight budget at the moment and did not want to go to a main dealer!
Thanks.
Last edited by Bighouse; Jul 16, 2007 at 05:03 PM.
Member
Joined: Mar 2006
Posts: 86
Likes: 0
From: Dallas TX
W163 & 203
You could try to clean up first like I did...
First clean up the Air Filter if u re using K & N or replace one if you dont use K & N then you could clean the MAF by dip them to 70% alcohol..u gotta find the DIY for MAF and all materials you need is very affortable...
If those arent working then you may need to change MAF which is running close $200...dont change the spark plug yet if you re is not due...
Good Luck....
First clean up the Air Filter if u re using K & N or replace one if you dont use K & N then you could clean the MAF by dip them to 70% alcohol..u gotta find the DIY for MAF and all materials you need is very affortable...
If those arent working then you may need to change MAF which is running close $200...dont change the spark plug yet if you re is not due...
Good Luck....
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ML
I have a 99 ML320. It has started running a bit rough, spluttering when accelerating hard and does not seem to rev much over 3500 rpm particularly when going uphill.I have read some of the posts on here and purchased some new plugs, leads and a new airflow sensor. I am going to try and replace these items myself.
If I replace the airflow sensor does something have to be re-programmed for the new sensor? Also, could changing the above sort out my problems. I am on a bit of a tight budget at the moment and did not want to go to a main dealer!
Thanks.
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Thread Starter
Newbie
Joined: Jul 2007
Posts: 8
Likes: 0
From: England
1999 ML 320
I got plugs, leads and an airflow sensor for 160 pounds which is about $300. The plugs deifinitely have not been done since I have owned the car from 40k miles - it is now on 82k so I thought that would be worth doing anyway.
My local dealer (in the UK) charges about $130 per hour labour so a couple of hours labour would almost cover the cost of the parts I have bought and then I would have to pay the dealer's prices for any spare parts...
I'm hoping the bits i've bought will fix it
My local dealer (in the UK) charges about $130 per hour labour so a couple of hours labour would almost cover the cost of the parts I have bought and then I would have to pay the dealer's prices for any spare parts...
I'm hoping the bits i've bought will fix it
Member
Joined: Mar 2006
Posts: 86
Likes: 0
From: Dallas TX
W163 & 203
It s easy if you have extra bucks to burn in dealer...
Get the OBD cost around $200 and is worth it for long run and it ll tell you what s wrong and compare those with the list of diagnosis that post it in forum.http://www.whnet.com/4x4/dtc.html.
we all know here MAF in ML is one of the defect material..if you could fix it u re self why bother to spend extra for same result..
as for the plugs...is a good idea to replace them all and also check the wire it self...then should be runnin a champ again...Good luck..
Get the OBD cost around $200 and is worth it for long run and it ll tell you what s wrong and compare those with the list of diagnosis that post it in forum.http://www.whnet.com/4x4/dtc.html.
we all know here MAF in ML is one of the defect material..if you could fix it u re self why bother to spend extra for same result..
as for the plugs...is a good idea to replace them all and also check the wire it self...then should be runnin a champ again...Good luck..
Thread Starter
Newbie
Joined: Jul 2007
Posts: 8
Likes: 0
From: England
1999 ML 320
Thanks for your help guys. I fitted the new airflow sensor today and its like a new car. It is so much quicker and is giving me full power just as it should. I have not fitted the plugs and leads yet so the problem was difinitely the airflow sensor. Im not going to fit the the plugs for a while - its running so well now I dont want to touch it!
By the way it was only the in line plug in sensor that I replaced that is just by the air filter box, only took 5 minutes to do the job and only cost me 50 pounds (about $100). Bought it from an online parts distributor. This has saved me spending a load of money at the dealers, great result.
By the way it was only the in line plug in sensor that I replaced that is just by the air filter box, only took 5 minutes to do the job and only cost me 50 pounds (about $100). Bought it from an online parts distributor. This has saved me spending a load of money at the dealers, great result.
Junior Member
Joined: Jan 2004
Posts: 38
Likes: 0
From: NJ
ML 320 MY2000, C320WZ MY2004.5
in line plug in sensor ??
Thanks for your help guys. I fitted the new airflow sensor today and its like a new car. It is so much quicker and is giving me full power just as it should. I have not fitted the plugs and leads yet so the problem was difinitely the airflow sensor. Im not going to fit the the plugs for a while - its running so well now I dont want to touch it!
By the way it was only the in line plug in sensor that I replaced that is just by the air filter box, only took 5 minutes to do the job and only cost me 50 pounds (about $100). Bought it from an online parts distributor. This has saved me spending a load of money at the dealers, great result.
By the way it was only the in line plug in sensor that I replaced that is just by the air filter box, only took 5 minutes to do the job and only cost me 50 pounds (about $100). Bought it from an online parts distributor. This has saved me spending a load of money at the dealers, great result.
Thanks.
