Audi S5 (2008-2013) Steering Tie Rod End Replacement Guide
Everything an S5 owner needs to know before replacing their steering tie rod ends.
- A wheel alignment is mandatory immediately after replacing tie rod ends to prevent unsafe handling and rapid tire wear.
- For best results, choose OEM supplier brands like TRW or Lemforder, or consider performance options like 034Motorsport for enhanced durability.
- Always replace outer tie rod ends in pairs (left and right) to ensure balanced steering and predictable handling.
- Symptoms like a clunking noise, steering wheel vibration, and a 'dead spot' in the steering are clear indicators of worn tie rod ends on your S5.
Symptoms of a Failing Tie Rod End on Your S5
A worn tie rod end on an Audi S5 isn't just a minor annoyance; it's a safety issue. Because the B8 platform S5 has a precise steering feel from the factory, symptoms of wear can be quite noticeable. Look out for these common signs:
🎬 Watch: 7 common signs of a bad tie rod end.- Steering Wheel Vibration: You may feel a shaking or vibration through the steering wheel, which often gets worse as you accelerate or turn.
- Clunking or Knocking Noises: A distinct clunking or popping sound from the front end, especially when turning at low speeds or going over bumps, points to a loose joint inside the tie rod end. 🎬 Watch: How to diagnose a bad outer tie rod end yourself.
- Sloppy Steering or "Dead Spot": If the steering feels loose, vague, or has excessive play, it's a classic sign of a worn tie rod. You might turn the wheel slightly and feel a "dead spot" where the car doesn't respond immediately.
- Uneven Tire Wear: A bad tie rod end can cause the wheel alignment to be off, resulting in rapid and uneven wear on the inside or outside edge of your front tires.
A Note on Other Steering Issues
The 2008-2013 Audi S5 uses an electromechanical power steering system. Some owners have reported issues like a "notchy" or inconsistent steering feel, particularly in cold weather. This is often related to the steering rack or control module software and is a separate issue from a worn, mechanical tie rod end. If you experience these specific symptoms, a different diagnosis may be required.
Choosing the Right Aftermarket Tie Rod End
When replacing tie rod ends, you don't have to go to the dealer. The aftermarket offers a wide range of options, but quality varies. For a performance vehicle like the S5, choosing a quality part is essential for maintaining steering precision and safety. Here’s a breakdown of available brands:
Tier 1: OEM Supplier & Performance Brands
These brands are known for meeting or exceeding original equipment quality. They are the top choice for owners who want to restore original performance and longevity.
- TRW Parts: TRW is a massive global parts manufacturer and is often the original equipment supplier for many German car brands. Choosing TRW is usually a safe bet for getting OEM-level quality, often for less than the dealer-branded part.
- Lemforder: Like TRW, Lemforder is a well-respected OEM supplier for Audi, BMW, and Mercedes-Benz suspension and steering parts. They are a go-to choice for many European car specialists.
- 034Motorsport: For the enthusiast owner, 034Motorsport offers a "Heavy Duty" tie rod end specifically for the B8 platform (which includes your S5). These feature an all-metal construction designed for enhanced durability under performance driving conditions.
Tier 2: Reputable Aftermarket Brands
These brands are established in the aftermarket and offer a good balance of price and quality. They can be a solid choice, but their reputation can sometimes be mixed depending on the specific product line.
- Delphi: Another major OEM supplier and aftermarket brand, Delphi parts are generally considered reliable and are a popular choice.
- Mevotech: Mevotech offers several lines. Their higher-tier "Supreme" or "TTX" (Tough Terrain Xtreme) lines are designed to be problem-solvers, often with beefed-up components and improved corrosion resistance. These can be a good option, though their standard-grade parts are considered lower quality.
- Moog: While once considered a top-tier brand, many professionals and DIYers feel Moog's quality has declined in recent years. While their "Problem Solver" series may offer some benefits like greaseable fittings, they are no longer the automatic top choice they once were.
Tier 3: Budget & Standard Replacement Brands
These brands focus on providing an affordable replacement part. While functional, they may not offer the same longevity or precision as higher-tier options.
- Beck Arnley, Dorman, Vaico, Suspensia: These brands provide a wide array of parts for many vehicles. They can be a viable option for a daily driver on a budget, but don't expect the same level of performance or durability as an OEM supplier part.
Pro Tip: Replace in Pairs
It is highly recommended to replace both the left and right outer tie rod ends at the same time. They have been subjected to the same amount of wear and mileage. Replacing just one side can lead to an imbalance and you'll likely be replacing the other one soon anyway. Also, inspect the inner tie rods when replacing the outers.
Cost of Replacing Audi S5 Tie Rod Ends
| Part / Service | Estimated Cost |
|---|---|
| New Aftermarket Tie Rod End (Pair) | $50 - $175 |
| New OEM Tie Rod End (Pair) | $300 - $400 |
| Shop Labor (Includes Installation) | $150 - $350 |
| Wheel Alignment (Required) | $120 - $200 |
| Total Estimated Cost (Aftermarket Parts + Labor) | $320 - $725 |
Costs are estimates and can vary based on your location, the specific parts chosen, and the shop's labor rates.
Frequently Asked Questions (FAQ)
Do I absolutely need a wheel alignment after replacing my tie rods?
Yes, 100%. Replacing the tie rod ends directly affects the front wheels' toe angle. Driving without an immediate alignment will cause poor handling, unsafe driving characteristics, and will destroy your front tires in a very short time. Plan on having the car aligned as part of the repair process.
Is this a DIY job for a home mechanic?
Yes, for an experienced DIYer. The process involves lifting the car, removing the wheel, loosening a lock nut, and separating the tie rod's ball joint from the steering knuckle. This last step often requires a special tool called a ball joint separator or "pickle fork" and can sometimes be difficult if the parts are rusted together. The most critical part is taking the car for a professional alignment immediately after.
Are the left and right tie rod ends the same part?
No. The left (driver's side) and right (passenger's side) tie rod ends are specific to their side and are not interchangeable. Ensure you order the correct parts. The OEM part numbers are 8K0422817B for the left side and 8K0422818B for the right side.
Should I replace the inner tie rods at the same time?
Not necessarily, but you should always inspect them. While the outer tie rod ends wear more frequently, the inners can also fail. A mechanic can check for play in the inner tie rods while replacing the outers. If they are also worn, it is cost-effective to replace them at the same time.
Helpful Videos
Technical Specifications
OEM Part Numbers: 8K0422817B (Left) 8K0422818B (Right)
Outer tie rod ends are side-specific. The left and right parts are not interchangeable.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Audi S5:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Symptoms of a Failing Tie Rod End on Your S5
- A Note on Other Steering Issues
- Choosing the Right Aftermarket Tie Rod End
- Tier 1: OEM Supplier & Performance Brands
- Tier 2: Reputable Aftermarket Brands
- Tier 3: Budget & Standard Replacement Brands
- Pro Tip: Replace in Pairs
- Cost of Replacing Audi S5 Tie Rod Ends
- Frequently Asked Questions (FAQ)
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