Bilstein 10-256503 B1 Air Suspension Compressor Pump for BMW 5 Series E61 Touring 2004-2010 | OE-Quality Self Levelling Direct Replacement

Bilstein 10-256503 Level Control Compressor for BMW 5 Series E61 Touring

Bring your E61 estate back to the correct ride height with the Bilstein 10-256503 level control compressor. This genuine Bilstein B1 service component is built to original equipment standards, delivering quiet operation, consistent pressure and a straight swap with your factory unit. Ideal for rear axle pneumatic systems on BMW 5 Series Touring models, it restores smooth, stable handling and confident load carrying.

Why it is the go-to replacement

• Direct-fit compressor assembly with OEM-grade connectors and brackets
• Restores height control and load levelling on the rear suspension
• Low-noise, durable motor engineered by Bilstein for long service life
• Fixes slow lifting, sagging overnight and level control warnings
• Perfect for E61 cars equipped with rear air springs and height sensors

Real-world results

We have supplied and installed this Bilstein unit for many E61 owners and it has been consistently impressive. Feedback highlights quick activation, smooth pressure build and quieter running compared with tired or failing compressors. Customers report a noticeable improvement in stability and comfort, especially when carrying passengers or luggage.

Vehicle fitment

BMW 5 Series Touring E61 with rear pneumatic suspension, production 03/2004 to 12/2010, including:

• Petrol: 520i, 523i, 525i, 525xi, 530i, 530xi, 535xi, 545i, 550i
• Diesel: 520d, 525d, 525xd, 530d, 530xd, 535d

If your E61 uses rear air bellows and electronic height control, this compressor is the correct style of unit.

Common search terms

BMW E61 height control compressor, BMW 5 Series Touring rear air supply unit, E61 load levelling pump, BMW wagon air ride compressor, rear axle air system pump, BMW estate self levelling compressor, 5 Series E61 height pump, BMW level regulator compressor, E61 rear suspension compressor, Bilstein B1 compressor 10-256503, BILSTEIN-10-256503.

Fitting service

Professional installation is recommended. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote: info@mjmodifications.co.uk

Compatibility check before dispatch

We will verify suitability for your car prior to shipping. Please provide your UK registration or the last 7 digits of your VIN at checkout.

Part details

• Part number: 10-256503
• Alt reference: BILSTEIN-10-256503
• EAN: 4025258771393
• UPC: 651860775197
• Range: Bilstein B1
• Brand: Bilstein

Installation notes

Follow manufacturer procedures, check for air leaks in lines and bellows, clear fault codes and ensure the system is calibrated after fitting.