Suplex 03188 Coil Spring - Rear, Rear Left or Rear Right

Rear Coil Spring for Audi A4 and S4

Suplex 03188 is a rear coil spring for select Audi A4, A4 Quattro, and S4 applications from 2002-2008. It is listed for rear, rear left, and rear right positions depending on vehicle configuration, including standard and heavy-duty suspension setups.

Key Features

• Rear coil spring for select Audi A4, A4 Quattro, and S4 models
• Application-specific fitment for rear, rear left, and rear right positions
• Coverage for standard suspension and heavy-duty suspension configurations
• Matches OE reference 8E0511115CT on listed applications
• Suplex part number 03188 for direct catalog lookup

Fitment Details

• Fits 2008 Audi A4, rear. Grade: Heavy Duty; with 1 paint mark white, 1 paint mark green; with OE No. 8E0511115CT.
• Fits 2005-2008 Audi A4 Quattro, rear.
• Fits 2008 Audi S4, rear.
• Fits 2007 Audi A4, rear.
• Fits 2007 Audi S4, rear left. Mark: 1 White, 1 Green; Code: PR-1BA/0YK; with standard suspension and weight range 10.
• Fits 2006 Audi A4, rear left. Mark: 1 White, 1 Green; Code: PR-1BA/0YK; with standard suspension and weight range 10.
• Fits 2006 Audi S4, rear right. Mark: 1 White, 1 Green; Code: PR-1BA/0YK; with standard suspension and weight range 10.
• Fits 2005 Audi A4, rear. Mark: 1 White, 1 Green; Code: PR-1BA/0YL; with standard suspension and weight range 23.
• Fits 2005 Audi S4, rear right. Mark: 1 White, 1 Green; Code: PR-1BA/0YL; with standard suspension and weight range 23.
• Fits 2004 Audi A4, rear right. Grade: Heavy Duty; with 1 paint mark white, 1 paint mark green; with OE No. 8E0511115CT.
• Fits 2004 Audi S4, rear right.
• Fits 2003 Audi A4, rear. Mark: 1 White, 1 Green; Code: PR-1BA/0YL; with standard suspension and weight range 23.
• Fits 2002 Audi A4, rear right. Grade: Heavy Duty; with 1 paint mark white, 1 paint mark green; with OE No. 8E0511115CT.
• Fits 2002-2004 Audi A4 Quattro, rear. Grade: Heavy Duty; with 1 paint mark white, 1 paint mark green; except vehicles with sport suspension; with OE No. 8E0511115CT.
• Fits 2002 Audi S4, rear. Mark: 1 White, 1 Green; Code: PR-1BA/0YL; with standard suspension and weight range 23.

What This Spring Helps Address

• Rear suspension sag on Audi A4 and S4 vehicles
• Uneven ride height at the rear of the vehicle
• Spring fatigue from age, mileage, or load use
• Restoration of factory-style rear suspension support
• Replacement for worn OE-style rear coil spring applications

Installation Notes

Verify the vehicle’s suspension code, paint marks, weight range, and OE number before ordering. This spring is listed for specific rear positions, so confirm whether your Audi A4, A4 Quattro, or S4 requires rear, rear left, or rear right application coverage. A proper spring compressor and suspension inspection are recommended during replacement.

Quality Assurance

Suplex supplies application-specific suspension components for listed Audi fitments. This part cross-references OE No. 8E0511115CT for the same application.