need help slow throttle respons
Thread Starter
Member
Joined: Apr 2006
Posts: 85
Likes: 1
need help slow throttle respons
my ml isnt driving nomal at all . it has very slow throttle respons and when i step on it. it wouldnt matter how far down the peddle goes it will acclrate at the same speed if i barly push it. i cant figure out why. it used to acclrate fast when i wanted it too just by pushing the pedle down now it makes no difrnce how far down the pedle goes
MBWorld Fanatic!
Joined: Jan 2003
Posts: 1,338
Likes: 34
From: Germantown, MD
S550, R350, GL550, ML63 AMG
Could be anything...
MAF Sensor could be dirty causing bad accel.
Dirty Air Filters
Spark Plugs might need to be changed
Fuel filter might need to be replaced
Bad Gas (some octane boosters or fuel additives can fix this)
What you need to do depends on your mileage.
If you don't have time to check these yourself I would take it in to the Dealer.
Some Dealers usually have free 10 point inspections.
Good luck.
MAF Sensor could be dirty causing bad accel.
Dirty Air Filters
Spark Plugs might need to be changed
Fuel filter might need to be replaced
Bad Gas (some octane boosters or fuel additives can fix this)
What you need to do depends on your mileage.
If you don't have time to check these yourself I would take it in to the Dealer.
Some Dealers usually have free 10 point inspections.
Good luck.
Thread Starter
Member
Joined: Apr 2006
Posts: 85
Likes: 1
i have like 102,000 miles on it and my M A S been changed like 3 years a go but it seems normal when i floor it it hits the magnit in the bottom and then it takes off but if not it barly moves
buut i need to get the spark pluges and the fuel filter changed asap
buut i need to get the spark pluges and the fuel filter changed asap
Super Member
Joined: Apr 2003
Posts: 690
Likes: 33
From: Bay area - California
2000 ML320 2006 SLK 350
Replace the Spark plugs and fuel filter ASAP....
My throttle response had dropped to pathetic and so had my mileage...I replaced the spark plugs and fuel filter at 94K miles...the improvement on both fronts was dramatic after the first 400 miles or so of driving...mileage climbed from 14 mpg to 18 mpg....throttle response and pickup restored to what it was when driven off the showroom...
Last edited by mihir_d; Mar 3, 2007 at 02:18 AM.
Super Member
Joined: Feb 2007
Posts: 809
Likes: 74
From: Dallas, TX
2008 E63 wagon (1 of 62)
just fyi, it's not a magnet. The thing you hit when you floor it is called the kickdown switch. Basically its telling the car you want to downshift and accelerate fast for one reason or another.
Newbie
Joined: Sep 2006
Posts: 18
Likes: 0
From: Malta
2001 ML270
I had the same problem on my ML. I would be driving normally and suddenly the car would only speed up to a maximum of 50Km/hr and remain the same. Took car to the dealer who informed me that something was wrong in one of the cars computers and car was falling in to what the dealer referred to as "emergency mode". It than resulted I had a faulty passenger seat sensor.
