Does anyone know why my 1995 S320 Mercedes will not pick up speed when I accelerate, and the asr light is on.

20

Asked by Dec 21, 2012 at 06:53 PM about the 1995 Mercedes-Benz S-Class S 320 LWB

Question type: Maintenance & Repair

13 Answers

254,045

Check your throttle linkage assembly and see if it is seizing up. Once your car warms up is it drivable then?

4 of 4 people found this helpful.
8,925

no that wont help....if u restart the car right away will it go away? have you checked for codes, via 38 pin connector not just obd2??? let me know what they are. not pick up speed is called lymp mode...the computer is not allowing the car to "hurt itself" so to speak... with the codes I can help determine if it is a module or simple reset.

3 of 3 people found this helpful.
20

Yesterday I warmed it up and it drove with no problem, I dropped it off to a mechanic for a few hours, let it warm up for about 3 minutes continued home with no problem. I stopped for about 10 minutes leaving it running, when I took off it started again.

2 of 2 people found this helpful.
8,925

what did the mechanic do if anything? and every time you cycle the ignition every single monitor on the vehicle resets themselves, so they is not relevant in this case :( but did the shop do anything to it?

8,925

ASR is TRACTION control, you know if it is ESP, or ESC? Am I right in guessig it will not let you exceed 25 miles an hour? Or about that??? If i remember correctly, (up all night, haven't slept yet) ESP is the one that a dealership can deactivate the electronic accelerator...so that you will not have the problem ever again...

2 of 2 people found this helpful.
20

No, it says ASR. If I press down I can drive about 35. Yesterday I let it warmup and it drove fine

1,595

ASR is anti-slip regulator. This car doesn't have ESP. Your problem is the EA (electronic accelerator). You have a bad contact internally. Unfortunately they're rather expensive. Try a scrap yard. It's not difficult to replace.

8,925

yes, but some models, those equipped with esp, NOT esc, the dealer can just shut off the e.a. with the computer via the 38 pin connector....:)

1,595

The EA is an electronic motor, controlled by the computer that operates the throttle plate. There is no mechanical connection to the throttle. How can the engine run above idle without a throttle?

8,925

yes, it is controlled by the computer, but it is an AUTOMATIC ACCELERATOR!!!! meaning, you will have to apply the gas with your foot for the car to move....it won't move itself when in gear....(such as idle speed) please research before contradicting me, thanks

2 of 2 people found this helpful.
1,595

Sometimes advise is worth what you pay for it. WE can't shut off an EA by the way, or ESP! AUTOMATIC ACCELERATOR! I'm still laughing, I mean looking into that one.

What does -443 means in the dash when i start up car??

Hold down the brake for 3 mins while ac current is on turn key off and restart...solved dec 2016

Your Answer

S-Class

Looking for a Used S-Class in your area?

CarGurus has 5,633 nationwide S-Class listings starting at $2,000.

ZIP:

Mercedes-Benz S-Class Experts

  • #1
    Tom Demyan
    Reputation
    760
  • #2
    Michael Kane
    Reputation
    560
  • #3
    lightGear
    Reputation
    440
View All

Related Models For Sale

Used Mercedes-Benz E-Class
469 Great Deals out of 19,709 listings starting at $1,400
Used BMW 7 Series
147 Great Deals out of 5,852 listings starting at $2,500
Used Mercedes-Benz C-Class
590 Great Deals out of 25,389 listings starting at $1,995
Used Mercedes-Benz SL-Class
66 Great Deals out of 2,887 listings starting at $4,500
Used BMW 5 Series
450 Great Deals out of 16,246 listings starting at $1,995
Used Land Rover Range Rover
105 Great Deals out of 4,608 listings starting at $1,900

Used Cars For Sale

2018 Mercedes-Benz S-Class For Sale
112 listings starting at $99,065
2017 Mercedes-Benz S-Class For Sale
5 Great Deals out of 911 listings starting at $81,881
2016 Mercedes-Benz S-Class For Sale
8 Great Deals out of 155 listings starting at $67,995
2015 Mercedes-Benz S-Class For Sale
43 Great Deals out of 926 listings starting at $41,980
2014 Mercedes-Benz S-Class For Sale
18 Great Deals out of 396 listings starting at $44,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.