Tag: supercharger

Mercedes CLS55 AMG W219, Replacing The Supercharger Idler Pulley

I noticed that the supercharger idler pulley had quite some dirt accumulation on it and also felt a bit of play, so decided to replace it with a new pulley. I made the right decision as the grease was escaping and therefore attracting the dirt.

Runs smooth again with the new pulley. When I will upgrade with billet pulleys, I will also replace the tensioner itself.

Old (+dirty) and new pulley



Mercedes CLS55 AMG W219, Servicing The Supercharger Oil

One of the most common overlooked service items, is replacing the supercharger oil. The gears of the supercharger spin very fast and need proper lubrication and cooling. Because it spins so fast, it requires a special type of oil: Mobil Jet Oil II (Synthetic Jet Engine Oil).

This oil is not that widely available to customers and also not very cheap. I used a 150ml syringe with some hose to extract the oil and fill it up again. It holds 150ml maximum, but you can never get all the oil out unless you remove the supercharger. I removed about 130ml, and put back the same amount in fresh oil.

Extracting the old oil
Used a plastic containter to hold the oil in, which makes it a lot easier



Mercedes CLS55 AMG W219, Bosch Intercooler Pump Upgrade

The infamous Bosch “010” upgrade pump for the watercooled supercharger circuit.

As I replaced the pump, it seems one of the previous owners already placed the Bosch 010 pump. Nevertheless a worthy replacement, as I have zero idea how old it was.

Partnr: 0392022010




Mercedes CLS55 AMG W219, Driveby Sound (Center Resonator Delete)

Short video of my 2005 Mercedes CLS55 AMG with:

  • 0:00 Warm start / Idle
  • 0:18 Revving (3.000 – 3.200rpm)
  • 0:37 Liftoff
  • 0:52 Return
  • 1:03 Driveby (with some supercharger whine)
  • 1:19 Liftoff again
  • 1:38 End Credits

Mods:

  • K&N Panel filters
  • Stock Catalysts (primary & secondary)
  • Stock mufflers
  • Center resonator delete

Visit my YouTube channel here: https://www.youtube.com/ndphotonl




Mercedes CLS55 AMG W219, Replacing the Supercharger Pulley Bearing (Nachi)

I decided to replace the supercharger pulley bearing with a fresh new Japan made Nachi bearing. One of the easiest way is the hot/cold method, where you heat up the pulley and freeze the bearing itself. This results in the bearing sliding into the pulley with relative ease.

I could’ve also used my workshop press, but I didn’t want to force it in. I followed this guide for it:

Some more pictures:

All CLS55 AMG pictures here in my Google Photos album: https://photos.app.goo.gl/6SP5PFAUXCqanoSX9




Mini Cooper S R53 JCW – Servicing the Eaton M45 supercharger

When I bought the Mini, it had reached the 160.000km or 100.000 miles mark. This is a milestone in the Mini Cooper S service history, because it means that you need to service the Eaton M45 supercharger (new fresh supercharger oil etc etc).

I saw the episode from Wheeler Dealers and felt confident. It was a lot of work, but fortunately it wasn’t complex. As this isn’t my daily driver, I meant I could take the time.

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Eaton M45 supercharger on the work bench

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

The new Compressor Bypass Valve (CBV) vs the old

Mini Cooper S R53 JCW Supercharger Service

Dirty throttle body!

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Finally cracked the supercharger open to allow for visual inspection of the gears (they looked good!)

Mini Cooper S R53 JCW Eaton M45 service

Mini Cooper S R53 JCW Eaton M45 service

Mini Cooper S R53 JCW Eaton M45 service

Mini Cooper S R53 JCW Eaton M45 service

I also replaced the supercharger coupler with a new oil filled nylon coupler (in red).

Mini Cooper S R53 JCW Oil Filled Nylon Supercharger Coupler


Mini Cooper S R53 JCW – Vacuum Gain System VGS Modification

As usual, the Mini Cooper S with the Eaton M45 supercharger also has a bypass valve, which helps with fuel economy and lighten the load on the supercharger during idling (for instance). On NAM (North American Motoring forum) I noticed a popular mod, which is also known as the VGS or Vacuum Gain System modification.

Basically, the VGS mod changes the way the Bypass valve is operated. From indirect vacuum to direct vacuum, allowing faster response of the butterfly valve, but also keeping it shut better so no boost is lost.

I liked it in the beginning, but it makes for a rough driving experience. So in the end I reverted and never went back. Thats why we experiment 🙂

Source: https://www.northamericanmotoring.com/forums/how-to/38268-drivetrain-operation-vacuum-gain-system-vgs.html

Changing the vacuum line routing.

Mini Cooper S R53 JCW Bypass Valve VGS Mod

Mini Cooper S R53 JCW Bypass Valve VGS Mod

Brand new Bapmic Compressor Bypass Valve (CBV).

Mini Cooper S R53 JCW Compressor Bypass Valve

Modifying the bypass valve.

Mini Cooper S R53 JCW Compressor Bypass Valve


Mini Cooper S R53 JCW – Starting a new Project

Last year, we were all affected by the pandemic. But even in such strange times, positive things happen. Like me buying a Mini Cooper S, which I wanted to drive for quite some time. I noticed one in the trim that I wanted and went ahead with it.

Looked even better than on the pictures in the advert & was fitted with extra’s like:

  • Carbon GP bumper inserts
  • Carbon handle
  • Carbon JCW hood scoop
  • Carbon Mini R56 spoiler
  • Chrono pack interior
  • LED Angel Eyes
  • LED amber indicators
  • Dechromed exterior trim
  • MSD Coilpack & HT leads
  • 17″ R113 Black / Chrome wheels

A lot of work already has been done, this will be documented as well. Stay tuned 🙂

Thanks to my buddy Joost Evers of Hobbygarage Evers for helping me out!

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)