2008-2013 Mercedes S CL Class W221 Auxiliary Battery Replacement


In this guide, you will learn how to replace the auxiliary battery on Mercedes-Benz S-Class such as S550 S350 S400 S63 AMG from 2008 to 2013. 

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2012 550CL

3 Mar 2020 •
Is there a diy solution for my rear left side window that intermittently automatically lowers for clearance when the door is opened?

Underhood OBD2 connector where is it

28 Dec 2019 •
There's no communication between the ECU and the vehicle I'm trying to find the underhood OBD2 connector

ABC pulsation damper

15 Nov 2019 •
Does the pulsation damper have a left or right hand thread

MB CL500 Year 2000 dash and SRS question

15 Nov 2019 •
Hello I would like some advice I made a short video showing the issues i have: My dash was replaced after an electric fuse fault with a new dash however the odometer reading was reset to 0km. How can i change this to show the original 94,000km the car had before. It also forever says display defective is there anyway to clear this. The SRS light came on a few weeks ago - no crash but wont disapear. I have had this at the mechanic who has scanned this with STAR error code Last my radio is forever in Japanese. Can this be changed to English.

CEL light on again. The right side ignition coil, voltage transformer and spark plugs are new. All was fine for 50kms after the replacement off parts, test drive and delivery.

15 Nov 2019 •
Hello, my 2008 CL65 has misfire codes-CEL light on, and the garage changed the right side ignition coil, ignition transformer and spark plugs. They advised all was fine now. Drove the car out and after driving a total of 60 kilometers the CEL light is back on. This happened when I pushed/accelerated the car from 80kmph onwards to 120kmph. Also had random vibrations thereafter. The car sounds a bit different too on idle! What could this be? thank you.

location the turbine speed sensor, code P0715

15 Nov 2019 •
P0715 is the code that im given.Where are these turbine sensors located on my 02 CL500 mercedes?

CL55 AMG miss firing

15 Nov 2019 •
Hi. We have an Cl55 amp miss firing between 1500 and 2000rpm. We have changed the plugs and checked all the coils. The problem only occurs as the car warms up and steadily gets worse. There are no error code

Radio Upgrade 2007 CL 500

15 Nov 2019 •
l am wanting to upgrade my radio/GPS command system for my CL 500. Is there anything out there that is compatible