Tag: suspension

Mercedes CLS55 AMG W219, Front Suspension Refresh

When doing previous work below the car, I noticed some original suspension components, which attributes to bad driving behaviour. As I intend to drive this car for a while, I made the decision to refresh the front suspension for now.

The work is not that complex and can be done by the DIY mechanic, but take your time.

All the front suspension components which will be replaced (thrust arms, wishbones, inner+outer tie rods, lower ball joints)

Also added the upper ball joints, as this was an easy swap!

Old vs new upper ball joint
Work in progress
Special tool in action!
Unfortunately, I received the wrong ball joints. Ordered new ones, which brought some delay
Also, the special tie rod tool I own, did not have the correct size (41mm required). So I decided to replace these in a later stage
Applied some fresh ballbearing grease on the inner tie rods.
Botched repair job on the outer tie rod
Also, way too much copper grease on these bolts, which is weird. These bolts are not known to seize…
Old vs new thrust arm
Old vs new wishbone (suspension arm)
Correct lower ball joint pressed in place

Off course, the next step is to get it aligned!




Mercedes CLS55 AMG W219, Repairing The Airmatic Compressor to Valveblock Airline

My MacGuyver method for repairing the airline did not hold out very long, so I needed something structurally. Fortunately, Mercedes sells a piece of airline (1.5m) for repairing/maintaining the Airmatic system, which was exactly what I needed.

Partnr: 2203271045 / A2203271045
Costs: about 20 euro

MacGuyver vs new airline. I used some teflon tape for extra safety
I found some hose which fitted around the airline perfectly (also for extra safety against rubbing)



Mercedes CLS55 AMG W219, Solving AirMatic Issues

I was suprised with this look, which is a horror type of situation for every CLS owner with Airmatic suspension. In the end I tracked the issue down to a leaking compressor air line (to the valve body), which solved the issue.




Mercedes CLS55 AMG W219, Replacing The Airmatic Compressor

With 186k kilometers on the clock and 17 years old, its good to start replacing parts as a preventative measure. After 17 years, rubber will be hard and brittle and electrical components might show fatigue or arent as “snappy’ as 17 years ago.

The Airmatic compressor (and relay) works hard to keep the 4 air springs inflated and after 17 year, its time for a rebuild or a pension 😉 I chose rebuild (and pension), so I always have a good one as spare. For good measure, also swap the Airmatic relay!

The Airmatic compressor on the drivers side, right behind the bumper.
New vs Old Wabco compressor
The new compressor in place. Unfortunately, the new compressor has a slightly different layout, so I worked around that by extending the air line. I used reinforced 4mm ID vacuum line to get it to work
Unfortunately, normal silicone boost/vacuum line is not suitable for 10-14 BAR working pressure 🙂 It went bang on me!



Volvo S80 2.4T IPD Polybush Upper Engine Stabilizer

Cheap and easy mod for a little bit more stability, polybush inserts for the upper engine stabilizer.

Volvo S80 2.4T Polyurethane Upper Engine Stabilizer