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dilip meh Posted on Apr 29, 2014
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Mercedes benz e 320 1998 model engine light code p0400

Engine light on code p0400

1 Answer

Bill Boyd

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  • Mercedes-Benz Master 53,816 Answers
  • Posted on Apr 30, 2014
Bill Boyd
Mercedes-Benz Master
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Joined: Jan 04, 2013
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Code p0400 refers to exhaust gas recirculation(EGR) system---flow malfunction.===causes---hose leak/blockage--basic setting not carried out (if applicable)---wiring---EGR valve ---EGR solenoid---ECM
check out the valve and solenoid.

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Dec 30, 2008

SOURCE: ABS & ASR lights come

abs light comes on and off during normal driving conditions also surges forward when the ligt turns off

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Mike

  • 4383 Answers
  • Posted on Oct 10, 2009

SOURCE: Turn off check engine light 1992 mercedes benz

The check engine light is on for a reason. You need to pull the error codes, and resolve all of the issues indicated. Then the light will go off.

If a condition were to happen, and be intermittent, the light would go out....But your description appears to have a fault condition detected. It is better and less expensive to fix the issue(s).

mx5turbo92

mx5turbo92

  • 545 Answers
  • Posted on Dec 17, 2009

SOURCE: i need the mercedes benz 1999 clk 430 radio code

AR82.60-P-7502-01A Coding Radio
(MODEL all with CODE (750) Radio Becker Europa 2000 with CODE (751) Radio Becker Grand Prix 2000 with RDS)

  1. If the radio is disconnected from the power supply, it is not operational when re-connected. After switching on the ignition and the radio, the readout CODE appears in the display.
  2. The code number for the radio is advised to you on the enclosed CODE CARD.
  3. To enter the first digit of the code number, you have to continue pressing station button 1 until the correct digit appears in the display. Adopt the same procedure for the second, third and fourth digits.
  4. Once you have entered the correct code number with the station buttons 1, 2, 3, 4 and confirmed the entry with the SEEK button (press down), the readout CODE disappears. The radio can now be operated.
  5. If you enter a wrong code three times, you must wait 15 minutes before making a new entry. In addition, if 9 incorrect entries are made, the radio will then not operate for 24 hours. During this time the radio and the ignition (terminal 15) must remain switched on.
AR82.60-P-7502-01B Coding Radio
(MODEL all with CODE (353) Audio 30 APS with CODE (510a) Radio MB Exquisit with traffic news decoder, with RDS (Becker) with CODE (512a) Radio MB Special with traffic news decoder, with RDS.)

  1. If the radio is disconnected from the power supply, it cannot be operated by simply reconnecting. After switching on the ignition and the radio the word "CODE" appears in the display on the radio.
  2. The code number for the radio is given on the enclosed CODE CARD.
  3. Enter the code number with the station button, e.g. number 1, station button 1. After entering the first number the word "CODE" disappears and the number entered appears followed by 4 dashes. The next character to be entered flashes. After entering all five numbers, the first character starts flashing again. In this state the code number can be written over as frequently as desired. A correction can be made only by entering the complete code number again.
  4. Confirm code number: Press TUNE, AUTO/SEEK or SC button. The radio automatically switches on and indicates the radio station or frequency stored with station button 1.
  5. If an incorrect code number is entered and confirmed, the word "CODE" appears again on the display. If an incorrect code is entered three times the word "WAIT" appears on the display and the radio locks up for approx. 10 min. If the code is entered incorrectly three times again the radio locks up again for 10 min. Three more incorrect entries (a total of 9 incorrect attempts) increase the lock-up time to 60 min. Another three incorrect entries lock up the radio for another 60 min. The waiting time runs only when the radio is switched on.

Anonymous

  • 437 Answers
  • Posted on Feb 10, 2010

SOURCE: how to reset airbag for mercedes benz c220 1994

This can not be reset by conventional methods. This must be done through a scan tool. Usually only the dealer scan tool will communicate with the SRS module. If the SRS light is on you have other issues and they must be remedied before the light will go out. There is no way of knowing what the issue is without running codes with the scan tool.

steve_e_uk

steve morris

  • 1675 Answers
  • Posted on Oct 02, 2010

SOURCE: I have an engine fault code of p0170 on a mercedes

hi this is showing fuel trim bank 1 malfunction, this could be caused by the following things, intake leak, AIR system, fuel pressure/pump, injector/s EVAP canister purge valve, or HO2S ( air fuel mix incorrect) if it starts and runs fine, i do not think it will be fuel pump, or the injectors as this would make it run rough or even not start at all, if it was an intake leak, you would be suffering from high rev's when you start the car and would take a long time for the rev's to come down, so really, that just leaves the HO2S (sensor/s) these are located one on the exhaust manifold ( from engine follow exhaust manifold you will come to a things sticking out with some wires on) this is HO2S sensor bank 1, or if you look under the car on the exhaust, just past the catalytic converter you will see the same thing, this is HO2S sensor bank 2, it may be either of these, but i possibly would go for the first one, EVAP..it could be, if you have an air leak on it, the EVAP can be found under the hood/bonnet, at the front on the right hand side as you look into the engine/motor bay just in front of the screen was bottle...hope this helps

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p0400 is dead EGR.
and can fail 2 ways, stuck open or closed
if open engine wants to stall and lots of other DTC errors caused by EGR,
stuck closed, engine wants to PING
I'd fix EGR first, and not go broke finding shirt tail failures.
take it to shop let them fix it.
some times just cleaning the egr is all that is needed.
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I'd expect more things wrong and more DTC on any car this old.
for sure driven ******* the Autobahn.
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