Link to purchase Wabco kits: https://x8r.co.uk/search/?cat=0&q=wab...

Symptoms of fault

Noisy suspension? Is your vehicles air suspension rising slowly or perhaps failing to rise at all? Red Air Suspension Light lit? 1772 - Pressure problems, 1400 - Control position not adjustable, 1577 - Can't raise, errors shown?

The fault

The piston ring within your vehicles EAS air compressor is worn reducing output significantly.
The poor quality piston ring within your air suspensions compressor wears over time causing these symptoms. The piston ring within the compressor unit of your air suspension system deteriorates over time, the OEM piston ring is made from a soft plastic that wears quickly, this wear substantially reduces the output of your compressor leading to noisy, slow rising or non-rising suspension.

The solution

Fit our improved design PTFE piston ring and restore your compressor to full health!
Simply install our replacement PTFE piston ring and restore your compressor, full instructions are included to guide you through this simple process which should take under 30 minutes. Our item is made from PTFE which has far superior wear resistance compared to the OEM part providing a permanent fix to the problems with your compressor.

Vehicles affected

Audi allroad C5 models 2000-2005 C6 model 2006-2011
Audi A8, D3, 4E models between 2002-2010
Audi Q7 2005-2013
BMW X5, E53 2000-2006
BMW 5 Series E39 1997-2008
BMW 7 series, E65 chassis 2002-2006
Jaguar XJ series models between 2003-2010
Landrover Discovery II models between 1998-2004
Land Rover Range Rover MK 3 - L322 between 2002-2005
Mercedes S Class 1998-2005 (w220)
Mercedes E Class 2002-2009 (w211)
Porsche Cayenne models between 2002-2010
VW Touareg 2002-2010


Associated part numbers, our kit will only repair Wabco compressors.
Official Compressor: RQG500110 (LR010375), RQG500140 (LR015089) Official Air Supply Unit: RQL000014 (37.22-6753864) Wabco: 415 403 300 0, 415 403 108 0. Official Compressor: RQG500130 Official Air Supply Unit: RQG100041 Wabco: 415 403 401 0, 415 403 925 2

You will receive

1x PTFE Piston ring
1x O shaped gasket o-ring
1x Shaped gasket o-ring
2x Screws
4x Cable ties