AC Schnitzer Suspension Lowering Springs Kit for BMW 4 Series Convertible (F33) 420d 420i 425d 428i | SE Sport M Sport | sDrive & xDrive | Adaptive Suspension Compatible

AC Schnitzer Sport Spring Set for BMW 4 Series Cabriolet F33 420d 420i 425d 428i

Give your F33 cabrio a confident, purposeful drop and a serious handling boost with this AC Schnitzer sport spring set. Expect a tighter, more composed chassis, crisper steering response and a level, planted stance that looks as good as it drives, while retaining everyday comfort for commuting and road trips.

What you will feel

• Ride height reduction that delivers a clean, even stance and improved road presence
• Flatter cornering with less body movement for better stability and grip
• Reduced squat and nose dive for smoother acceleration and braking
• Refined ride quality suitable for daily use and long-distance cruising
• Works seamlessly with BMW Adaptive dampers and xDrive all wheel drive

Drop amounts

• SE and Sport, including xDrive: approximately 20 mm lower
• M Sport sDrive: approximately 10 mm lower

Note: figures are approximate and may vary with specification and equipment level.

Vehicle coverage

Precisely tuned for the BMW 4 Series Convertible with F33 chassis code:

• Engines: 420d, 420i, 425d, 428i
• Trims: SE, Sport, M Sport
• Drivetrains: sDrive rear wheel drive and xDrive AWD
• Compatible with BMW Adaptive Suspension

Please select your engine, trim and drivetrain above to order the correct variant.

Real-world results from our workshop

We have fitted these AC Schnitzer springs to customer F33 cars and our own builds. Owners consistently report sharper turn-in, improved confidence on B-roads and motorways, and a tidy OEM-plus drop that complements the 4 Series Cabriolet’s lines without hurting ride quality. It is a genuine performance upgrade that still feels premium and refined.

Installation

Supplied with fitting guidance in English and German. Professional installation recommended.

Book expert fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Why this spring kit

• Engineered specifically for the F33 platform for balanced front to rear stance
• Optimised spring rates to enhance control while preserving comfort
• Ideal upgrade for standard and M Sport cars, RWD and AWD
• Perfect OE-plus solution if you want sportier dynamics without going coilover

Search-friendly fitment and uses

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