Mercedes benz B-170 after 50 km the code is coming 0793 (a0, 1, 7, 93) please refer to relevant technical manual and code 0722(a0, 1, 7, 22) check by scaner X431 what problem

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No. you have to correct the bad part. Suspension air pump. bad wiring or plug.

please refer to the owner manual.

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.

2005 Mercedes Benz C 240 Sedan (203.061) V6-2.6L (112.912) Vehicle Level Engine, Cooling and Exhaust Engine Engine Oil Dip Stick - Dip Stick Tube Technical Service Bulletins All Technical Service Bulletins Engine - Oil Level Message General Information Engine - Oil Level Message General Information GENERAL INFORMATION ON OIL LEVEL MESSAGE IN INSTRUMENT CLUSTER
Topic Number LI01.45-P-047548 Version 1 Design Group 01.45 Oil Pan Date 08-06-2009 Validity Valid for engines: M111, M112, M113, M166, M266, M271, M272, M273, M275, M285, OM611, OM612, OM613, OM628, OM629, OM640, OM642, OM646, OM647, OM648, OM668 Reason for change Update model designation/Supercedes SI S-B-01.45/26a and S-B-18.00/36a
Reason for block
COMPLAINT:
The attachment to this document contains detailed information on procedures and possible remedies in the event of implausible display messages concerning the engine oil level in the Instrument Cluster (IC).
Specifically, it contains information on:
1. Notes on implausible display messages
2. Overview chart of the relevant switches
3. Supplemental notes on oil level measurement
CAUSE:
For causes of implausible display messages, please refer to the document in the attachment (observe correct language version).
REMEDY:
For procedures and remedies in the event of implausible display messages, please refer to the document in the attachment (observe correct language version).
Engine Oil

Capacity
With Oil Filter 7.9 qts (7.5 liters)

radio ask for code

hello,good day,try to request a cd or manual ( technical support) to your dealer maybe they can provide a photo copy or a cd for your reference,ty

P0100 OBD-II Trouble Code

Technical Description

Mass Air Flow (MAF) Circuit Malfunction

Basically this means that there's a problem with the Mass Air Flow (MAF) sensor or circuit.

You will likely not notice any serious driving problems, but there may be symptoms like a general decrease in power or sluggishness.
Causes

A code P0100 may mean one or more of the following:

* The MAF may be disconnected, or a wiring connection may be bad.
* The MAF sensor may be faulty.

Possible Solutions

Use an OBD II Reader (or go tou your local parts store and they will for free) and reset the code and see if it comes back.
Then start with the cheapest, easiest repair procedures:

* Check the Mass Air Flow Sensor wiring/harness is connected properly and that there are no broken / frayed wires.
* Unplug and reconnect the MAF wiring harness a few times to clear the contacts.
* Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information).
* Replace the MAF sensor.

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hi,for my opinion,your dealer should write a technical product report to main distributor for further evaluation,ty