Nov 042018

2010 Mercedes-Benz E350

I did a scan for codes with an OBDII Scantool for Mercedes only N code came up a10d00 saying power supply too low(stored) N. The next one read 9a4f13 right KEYLESS GO has a malfunction. THERE IS N OPEN CIRCUIT. CURRENT N STORED HOW DO I FIX IT

Did not find any reference to the second code you mentioned. However, there is a Technical Service Bulletin out related to this code A10D00. It refers a wiring harness being damaged in the area of the roof frame.  This could affect one or all of the following areas:

  • Overhead control panel nonfunctional
  • Bluetooth nonfunctional
  • Multi-function camera nonfunctional or , malfunctions

TSB Reference Number: LI54.18-P-048131, Date of Issue: November 20, 2009 – The entire TSB along with step by step corrective procedures and pictures are included in each manual. – Purchase Manual

Fault Code A10D00

Mercedes-Benz Code A10D00 Description – The power supply is too low.

Control Unit: MFK – Multi-function camera (A40/11)(MPC212)


Aug 242018

2004 Mercedes ML500

Radio come on but no sound, I check fuse is there a fiber optic fuse or what could it be?

Radio come on but no sound

I will provide you with the radio wiring diagram to use for diagnostics. If the problem is internal in the radio, replacing it would be the fix.

Radio Wiring Diagram – 2004 Mercedes ML500 (best viewed in Google Chrome Browser)

Mar 142017

2009 Mercedes ML350I need the front SAM Module wiring diagram.


SAM – Signal Acquisition and Actuation Module

Front Sam Module Wiring Diagram – Mercedes ML350

NOTE* After installing a new unit, it needs to be reprogrammed.

front sam control Mercedes

Front SAM Module Recall Notice

MARCH 2008 — Mercedes-Benz is recalling 3,283 MY 2008 S-Class and CL-Class passenger vehicles. A malfunction may occur on the Signal Acquisition and Actuation Module-Front (SAM-F) transistors. The SAM-F is a double transistor that helps control vehicle functions and the lighting of the center console. Incorrect storage of the transistors led the transistors to be exposed to excess humidity. The presence of this moisture in combination with the thermal stress during the “reflow soldering” may have damaged the transistors while could prevent them from properly functioning increasing the risk of a crash. Dealers will inspect and replace all potentially affected SAMs. The recall is expected to begin during May 2008. Owners may contact Mercedes-Benz at 1-800-367-6372. 08V122

Feb 232017

2007 Mercedes C230I am having issues with a Code P0025 , I replaced both camshaft magnets and both positions sensors on the driver side but I am still getting this code. Can you tell me what problem might be?


Mercedes – Benz Code P0025 – Camshaft Position ‘B’ Timing Over-Retarded Bank 2

Code P0025 Possible causes

  • Faulty camshaft position sensor
  • Camshaft actuator circuit open or shorted
  • Camshaft actuator circuit poor electrical connection

Code P0025 Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of power
  • Engine rough idle
Feb 092017

2009 Mercedes Benz R350My vehicle has no power, no crank, no sound, no power. I replaced alternator and battery. Still no power need help please.


You have a blown fuse or bad connection at the battery. There is an inline fuse called a PREFUSE. This is on the red wire that connects from the battery positive tot he alternator. So you can us a multi-meter and check for battery voltage at the alternator. If you do not see battery voltage there then most likely the PREFUSE is blown. Repair or replace as needed.

Starting Wiring Diagram 2009 Mercedes Benz R350

2009 Mercedes Benz R350