20 Most Recent 2012 Mercedes-Benz Sprinter Questions & Answers

Question edited for clarity and add maker. Question moved to model category. You need a mobile auto electrician. Diagnosis can only be done with a pro grade scan tool computer, the $3.5k to $5k type. https://www.google.com/search?q=mobile+auto+electrician+near+me

Mercedes SAM - Signal Acquisition Module Explained

https://www.mercedesmedic.com > Popular Articles SAM stands for Signal Acquisition Module. A SAM module (also called Signal Actuation Module) receives data from sensors, switches, and controllers, ...

Any good garage with data book will have these settings for you

Highly likely, or the oxygen sensors or their connections. or the temp sensors.

What are the 6 codes?

Most cars and trucks can be re-set by disconnecting the negative batery cable for about 10 minutes...this should auto re-set to factory specs...if the light comes back on, you have wired into the wrong system. Hope this helps.

notify dealer or authorized repair shop that can hook up for computer changes

check th IVR( is IC that regulate the power exactly to the instrument in dashboard)+ THIS CAUSE to this problemSee the troubleshooting chart for fix it .

You might be able to buy a code reseter,and reader.

At this website www.reliable-store.com I found so much of information on how to repair vehicles and technical issues in detail.. Also complete, much better language, and they also have live assistance feature

there is a pressure relief valve in the hydraulic pump if you have no or very little pressure being generated , it may be that that valve is jammed in the open position or the spring controlling it has broken in any event the basic problem is that the hydraulic pump is not producing a volume sufficient to build up pressure check the installation of the filter as it may be restricting oil flow to the pump in installed incorrectly

I have a 1994 c ckass w202 mine did this it blew hot air all the time realy anoying in the summer lol any way it was the controler that wss at fault the bit on your dash that regulates the temperature if not yhere is a mixture valve under the bonnet itvregulates how much water goes into the heater matrix