Mercedes CLS55 AMG W219 – Worn Serpentine Belt Tensioner Pulley (YouTube)

When you know its time to replace a worn serpentine belt tensioner pulley.

I changed it after 190.000km (118.000 in miles). Also see my previous post about the replacement tensioner from Trucktec Automotive with a steel pulley.

Worn belt tensioner pulley (YouTube)



Mercedes CLS55 AMG W219, New Serpentine Belt Tensioner

What do you do when you have a noisy serpentine belt tensioner? You replace it with a new one off course! Never skip an opportunity to buy new shiny parts 🙂

I was able to find a Trucktec Automotive tensioner for the m113k engine, which has a steel pulley instead of the known-to-fail plastic pulley. It’s an easy DIY task, the most time is spent on removing parts to get access to the tensioner.

Trucktec Automotive serpentine belt tensioner with steel pulley

Trucktec Automotive serpentine belt tensioner vs OE Mercedes Benz serpentine belt tensioner

New serpentine belt tensioner in place!



Mercedes CLS55 AMG W219, Installing The Best Supercharger Belt, The Gates K080507RPM

Installed the best supercharger belt you can buy, the Gates RPM series. RPM standing for: Racing – Performance – Muscle.

As I am driving with a stock setup (stock supercharger pully & stock crankshaft pulley), the correct belt is the K080507RPM. I also made some comparison pictures, as I seem to have collected all the Gates belts!

  • Mercedes Benz Gates OEM / A1139970192
  • Gates Fleetrunner / 8PK1289HD
  • Gates Fleetrunner HD Green / K080510HD
  • Gates RPM / K080507RPM 8PK1289

The RPM belt seems to have the most “grippy” material.

Gates K080507RPM 8PK1289

Closeup of the Gates K080507RPM 8PK1289

Label of the Gates K080507RPM 8PK1289

Mercedes Gates OE vs Gates Fleetrunner vs Gates HD Green vs Gates RPM

Mercedes Gates OE vs Gates Fleetrunner vs Gates HD Green vs Gates RPM / 4 Belt comparison



Mercedes CLS55 AMG W219, Autumn Exhaust Run

Shot some videos last autumn, this is one of them. The autumn leafs work great on video 🙂 Enjoy!

Mercedes CLS55 Autumn Leafs

Mercedes CLS55 Autumn Exhaust Run on Youtube



Mercedes CLS55 AMG W219, 1 Picture Photoshoot 16-10-2022

Shot a pic when I was making some videos of the CLS.

Mercedes CLS55 AMG Iridium Silver



Mercedes CLS55 AMG W219, New Exide AGM 12-12 Aux (Auxiliary) Battery

Decided to replace the Auxiliary battery in the CLS, as I could not find how old the current battery was and also the top was dented?

I replaced the Varta Silver Dynamic AUX14 battery with an Exide AMG 12-12 battery. Replacement is very easy and can be done by any home mechanic.

Exide AGM Ready AGM 12-12 Battery

Exide AGM 12-12 vs Varta Silver Dynamic AGM AUX14

The AUX battery can be found on the passenger side, under the air cabin filter

Location of the AUX battery in the CLS55 engine bay



Mercedes CLS55 AMG W219, Kreezi RX11 Pro Phone Holder Mount

I wanted another phone holder, as the vent holder I was using looked “messy” and was blocking the vent. After a search, I went with the Kreezi RX11 Pro (whats in a name…) which has a strong suction cup and extendable arm.

It also clamps the phone automatically once you push your phone against the backing plate.

Link: https://www.bol.com/nl/nl/p/kreezi-rx11-pro-mobiele-telefoonhouder-met-zuignap-zwart-autohouder-gsm-houder-auto/9300000040467708/

Kreezi RX11 Pro phone holder

Kreezi RX11 Pro in the Mercedes CLS55 AMG



Mercedes CLS55 AMG W219, Broken Brake Light Switch (Intermittent)

I received the dreaded red light brake errors on my instrument cluster, so I was preparing for the worst (broken SBC computer). When I scanned for errors, fortunately it only showed a faulty brake light switch.

Partnr: 0015454009 / A0015454009

Reduced braking power! Start engine!

ESP Defective! Visit workshop!

Reduced braking power! Depress brake pedal fully!

MB iCarsoft v3.0: SBC Brake Light Switch error (C261E) / State: Historic Hydraulic Fault Or Brake Light Switch Faulty

Values with a lightly squeezed brake pedal

New brake light switch A0015454009 / 0015454009

Location of the brake light switch

New and old brake light switch




Mercedes CLS55 AMG W219, Black Wiper Filler Cap (Pre Facelift W211)

I always hate the bright blue caps for the wiper fluid and when there is an OEM option to change it something better, I am all ears 🙂

I was notified that the pre-facelift W211 E-class had a nice black & yellow cap instead of the ugly blue one. I was able to source used / second hand one for cheap. Retouched the yellow with some yellow caliper paint I had laying around and presto!

Partnr: 2118600064 / PUM22268

Yuck!

Blue vs Black/Yellow cap 2118600064 / PUM22268

Looks way better, don’t you agree?



Mercedes CLS55 AMG W219, Photoshoot During Driveaholic.nl Review

At the end of the Driveaholic.nl review, we stopped somewhere to take some shots of my CLS55 (potentially to be used for the review).

Mercedes CLS55 AMG front view

Mercedes CLS55 AMG Quad tailpipes

Mercedes CLS55 AMG front

Mercedes CLS55 AMG side view