2013-2017 Audi A5 & S5 Rear Clip: A Collision Repair Guide

When is a Rear Clip Necessary?

A rear clip is the solution for severe rear-end collision damage. If your 2013-2017 Audi A5 or S5 has damage beyond just the bumper cover and trunk lid, a rear clip might be the most effective repair. This is not a typical part failure, but a remedy for significant structural compromise.

Consider a rear clip if the vehicle has sustained:

• Frame Rail Damage: The rear frame rails (the foundation of the car's rear structure) are bent or crushed.
• Extensive Quarter Panel Damage: One or both quarter panels are buckled or torn, and replacing them individually is not practical.
• Trunk Floor Deformation: The floor of the trunk is pushed up or wrinkled, indicating widespread structural impact.
• Rear Body Panel Collapse: The panel where the taillights and trunk latch mount is severely damaged.

In these cases, grafting a straight, undamaged rear clip from a donor car onto the existing body is often more precise and structurally sound than attempting to pull and repair multiple crushed sections of the original unibody.

Buying a Used Rear Clip: What to Check

This is the most critical part of the process. Since a rear clip is a custom-salvaged assembly, you are buying a collection of parts that must perfectly match your vehicle's specifications. Mismatched options will lead to expensive and time-consuming modifications. Use this checklist when sourcing a used rear clip for your A5 or S5.

1. Verify Body Style

The most fundamental check. Parts for the Coupe and Cabriolet (convertible) are not interchangeable due to significant structural differences in the rear bulkhead, C-pillars, and trunk area. Ensure the donor vehicle is the same body style as yours.

2. Match the Trim Level and Bumper Style

The rear appearance of the A5 and S5 varies significantly between trim levels. You must match the bumper and its associated components.

• Audi A5 Standard vs. S-Line: The standard A5 has a more basic rear bumper and diffuser design. The optional S-Line package features a sportier rear bumper with a more pronounced diffuser, often with a honeycomb pattern.
• Audi S5: The S5 has its own unique, more aggressive rear bumper and diffuser designed to accommodate its quad-tip exhaust.
• Competition Package: Available on later models, this package included distinct features like a different lower spoiler and blacked-out trim. A clip from a Competition model will have a different bumper and potentially other trim pieces.

3. Check for Parking Sensors (Park Assist)

If your vehicle is equipped with the parking assist system, the rear bumper on the clip must have the corresponding holes for the ultrasonic sensors. A bumper without these holes cannot be easily retrofitted. Furthermore, ensure the wiring harness for the sensors is intact and included.

4. Sunroof vs. Non-Sunroof Models

If the rear clip includes the upper C-pillar and a portion of the roof, it must come from a car with the same sunroof configuration. A sunroof car has different structural components and drainage channels in the roof and pillars.

5. Inspect for Hidden Damage and Corrosion

Even a used clip can have issues. Before purchasing:

• Inspect the Cut Points: Ensure the salvage yard has provided enough material on the frame rails and panels for your body shop to work with.
• Check for Previous Repairs: Look for signs of Bondo, mismatched paint, or poor welds on the donor clip itself. You want a clip from a car that was hit in the front, not one that was previously repaired in the rear.
• Look for Rust: Especially check the trunk floor, spare tire well, and lower quarter panel seams for any signs of corrosion.

Known Issues, TSBs, and Recalls

While the clip itself doesn't have recalls, the components it includes might. Check these items on a donor clip or transfer your originals if they are in good condition.

Recalls

• Auxiliary Heater Connector Corrosion (NHTSA ID: 17V675000): Affects certain 2013-2016 A5 Coupe and Cabriolet models. The electrical connector for the auxiliary heater can corrode, leading to overheating and a fire risk. Ensure this has been addressed or transfer known good components.
• Electric Coolant Pump Failure (NHTSA ID: 18V229000): On 2013-2017 models with the 2.0L TFSI engine, the electric coolant pump can become blocked or short out, increasing fire risk. While not in the rear, its wiring may run through the chassis.

Technical Service Bulletins (TSBs)

• Taillight Contact and Paint Damage: A known issue exists where an insufficient gap between the trunk lid-mounted taillight and the body can cause paint to chip, potentially leading to corrosion. The fix involves repositioning foam buffers on the back of the taillight assembly. Inspect this area carefully on your car and the donor clip.
• Trunk Latch Failure: The electronic trunk latch can fail, preventing the trunk from opening or closing correctly. This can be due to a worn internal mechanism, a faulty microswitch (causing a 'trunk open' warning on the dash), or alignment issues after a collision.
• Taillight Moisture: Audi has issued TSBs regarding moisture accumulation inside taillight assemblies. Inspect any included taillights for signs of water intrusion or fogging.

Professional Installation Overview

Replacing a rear clip is a major structural operation. A body shop will perform the following general steps:

1. Measurement and Assessment: The vehicle is put on a frame machine to get precise measurements of the damage and to establish exact points for cutting.
2. Disassembly: The interior, wiring, fuel tank, and all trim are removed from the damaged area.
3. Cutting: The damaged section of the original body is cut away at factory-specified locations.
4. Preparation: Both the new clip and the existing body are prepped for welding, ensuring clean, perfect mating surfaces.
5. Fitment and Welding: The new clip is fitted into place, measured, and then structurally welded, often using a combination of spot welds and stitch welds to replicate factory methods.
6. Finishing and Reassembly: Welds are sealed, corrosion protection is applied, and the area is prepped for paint. All components are then reinstalled.

Cost Breakdown

The cost of repairing severe rear damage with a clip is significant. These prices are estimates and will vary based on location, the extent of damage, and the specifics of the donor clip.

Frequently Asked Questions