A Guide to Suspension Control Arm Bushings for the 1994-2002 Mercedes-Benz E320
Resolving steering wander and clunking noises by choosing the right control arm bushings for your W124 or W210 E320.
- Symptoms of failure include clunking noises, steering wander, vibrations, and uneven tire wear.
- It is highly recommended to replace the entire control arm assembly rather than just pressing in new bushings.
- Brand quality matters: Stick to OEM suppliers like Corteco for longevity; avoid budget brands like URO for critical suspension parts.
- A professional wheel alignment is mandatory after the replacement to prevent tire damage and ensure proper handling.
Is Your E320's Suspension Showing Its Age?
The control arm bushings on the 1994-2002 Mercedes-Benz E320 are common wear items. This series covers two generations, the W124 (1994-1995) and the W210 (1996-2002), but the symptoms of failure are very similar for both. Worn bushings can make your car feel less precise and comfortable. Identifying the signs early can save you from more costly repairs down the road.
Symptoms of Worn Control Arm Bushings
If the bushings are failing, you will likely notice one or more of the following issues:
- Clunking or Knocking Noises: A common symptom is a distinct clunking sound from the front suspension, especially when driving over bumps, potholes, or making sharp turns. This is the sound of metal-on-metal contact that the bushing is no longer preventing.
- Steering Wander or Vagueness: The steering may feel loose, or you might find the car pulling to one side, requiring constant correction to drive straight. This happens because the worn bushings allow for unwanted movement in the control arm, affecting alignment.
- Vibration in the Steering Wheel: Worn front lower control arm bushings on the W210 chassis are known to cause a shimmy or vibration in the steering wheel, often appearing around 60 mph.
- Uneven Tire Wear: Check your front tires. Accelerated wear on the inside or outside edges is a strong indicator that your suspension alignment is off, often due to bad bushings.
Pro Tip: Replace the Entire Control Arm, Not Just the Bushing
While you can buy just the bushings, most experienced mechanics and E320 owners recommend replacing the entire control arm assembly. The bushings are pressed into the arm and require a special hydraulic press to remove and install, a job that can be very difficult. A new control arm comes with new bushings and a new ball joint already installed. This saves a huge amount of labor, eliminates the need for special tools, and replaces the ball joint, which is another part that wears out. The extra part cost is often less than the additional labor cost to press old bushings out.
Choosing the Right Aftermarket Bushing Brand
Not all aftermarket brands are created equal. For a car like the E320, the quality of suspension parts directly impacts the driving experience. Here’s a breakdown of available brands based on owner experiences and reputation.
Tier 1: OEM Supplier Quality
These brands are known to manufacture parts for Mercedes-Benz or are held in similar high regard. They are the best choice for restoring the original ride and longevity.
- Corteco: Often an Original Equipment Manufacturer (OEM) for Mercedes-Benz, providing the same quality as the parts your car was built with.
- CRP (CRP-Rein): A trusted brand that often re-packages parts from OEM suppliers like Lemförder. A safe bet for quality.
Tier 2: Reputable Aftermarket
These brands offer a good balance of quality and value. They are a solid choice for most owners and may even feature designs that aim to improve on the original.
- Moog: A well-known brand in the suspension world, often with a reputation for durable, problem-solving parts.
- Mevotech: Known for good quality and sometimes offering enhanced "Supreme" or "TTX" lines for added durability.
- Delphi: A large, reputable parts manufacturer with a history of providing quality components.
Tier 3: Economy Brands
These brands are much cheaper but have a mixed reputation for longevity. Many owners report premature failures. Consider these only if budget is the primary concern and you understand they may not last as long as higher-quality options.
- URO Parts: Forum discussions frequently warn against using URO for critical suspension parts, citing rapid wear and failure, sometimes in as little as a year.
- Vaico: Reviews are mixed, with some users experiencing very short service life from ball joints and bushings.
- Dorman: Generally considered a budget-friendly option that balances cost and performance, but may not match the longevity of premium brands.
Known Issues, Recalls, or TSBs
There are no specific recalls from the NHTSA for the control arm bushings on the 1994-2002 Mercedes-Benz E320. This is a standard wear-and-tear component. While some general Technical Service Bulletins (TSBs) for suspension noises exist for later models, none point to a specific manufacturing defect for these bushings in the W124 or W210 chassis.
| Part Type | Price Range (Part Only) | Notes |
|---|---|---|
| New Aftermarket Bushing | $8 - $158 | Price varies widely by brand quality. |
| New OEM Bushing | $150 - $300 | Per bushing, from a dealership. |
| New Aftermarket Control Arm (with bushings) | $75 - $250 | Recommended method; includes new ball joint. |
| Shop Labor | $200 - $500 | Per side; includes pressing bushings or replacing the arm. |
Frequently Asked Questions (FAQ)
Do I need a wheel alignment after replacing the bushings?
Yes, an alignment is absolutely necessary. Replacing control arm bushings or the entire control arm will alter your car's suspension geometry. Skipping the alignment will lead to poor handling and rapid, uneven tire wear.
How long do aftermarket control arm bushings last?
Lifespan depends heavily on the brand and driving conditions. Top-tier brands like Corteco can last over 100,000 miles, similar to original parts. Mid-tier brands may last 50,000 to 80,000 miles. Economy brands have been reported to fail in as little as 15,000-30,000 miles.
Should I use polyurethane (poly) bushings instead of rubber?
Polyurethane is an option for a performance-oriented feel. It's much stiffer than rubber, which can improve steering response and handling. However, the trade-off is a significantly harsher and noisier ride, which detracts from the classic comfort of an E320. For most owners, a high-quality rubber or hydro-bushing is the better choice.
Is the process the same for my 1995 E320 (W124) and a 1998 E320 (W210)?
The basic principle is the same, but the suspension design and specific parts are different between the W124 and W210 chassis. However, the advice to replace the full control arm instead of just the bushing applies to both, as does the need for a special spring compressor and a final wheel alignment. Ensure you are ordering parts specified for your exact year and model.
Technical Specifications
OEM Part Numbers: 2013335114 2113331114
The 1994-1995 E320 uses the W124 chassis suspension. The 1996-2002 E320 uses the W210 chassis multi-link suspension. Parts are not interchangeable between these generations. Bushings are typically made of rubber or are fluid-filled (hydro-bushings).
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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.
- Mercedes-Benz E320:
- 🛍️ Shop This Part
- Is Your E320's Suspension Showing Its Age?
- Symptoms of Worn Control Arm Bushings
- Pro Tip: Replace the Entire Control Arm, Not Just the Bushing
- Choosing the Right Aftermarket Bushing Brand
- Tier 1: OEM Supplier Quality
- Tier 2: Reputable Aftermarket
- Tier 3: Economy Brands
- Known Issues, Recalls, or TSBs
- Frequently Asked Questions (FAQ)
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