BMW 6 E63 Control Arms & Bushings
BMW Control Arms & Bushings - What You Need to Know Before You Buy
If your BMW is pulling on straight roads, clunking over bumps, or eating through front tires unevenly, worn control arms and bushings are the most likely culprit. This is one of the highest-wear areas on any BMW, and it's worth doing right the first time - because cutting corners here affects handling, tire wear, and your safety on the road.
On the E46 3 Series, front lower control arm bushings are notorious for cracking as early as 60,000 miles - especially the rearward bushing, which takes the brunt of braking forces. The E90/E91/E92/E93 chassis sees similar wear patterns, and the F30/F31/F32 generation adds front lower control arm ball joints that tend to fail before the arms themselves. On the E39 and E60 5 Series, the front subframe bushings and lower control arms are frequently replaced together as a set. X5 owners on the E53 and E70 chassis deal with heavy wear on both front and rear arms given the added weight and off-camber loads. Know your chassis, know your failure points.
For OE-quality replacements, Lemförder and Meyle HD are the go-to brands. Lemförder supplies original equipment to BMW and is the safe choice when you want factory-spec geometry and durability. Meyle HD arms use upgraded bushing compounds that outperform OE rubber in longevity - a solid choice if you plan to keep the car past 150k. For track-driven or spirited street cars, Powerflex polyurethane bushings offer a significant upgrade in lateral stiffness and wear resistance, though expect slightly more road noise and NVH compared to rubber. Febi Bilstein and URO Parts are budget options - Febi is generally acceptable, URO should be avoided entirely on safety-critical suspension components.
When buying, always check whether you're getting a complete arm with bushings pre-pressed, or just the arm shell and separate bushings. On the E46 specifically, many DIYers buy the complete Lemförder arm assembly to avoid pressing bushings at home - it's worth the extra $20. If you're replacing bushings separately, confirm the bushing outer diameter and durometer rating match your application. A bushing that's even slightly undersized will walk under load and accelerate wear on the control arm itself.
Install Difficulty & What to Watch Out For
Front lower control arm replacement on E36, E46, E90, and F30 chassis is a solid intermediate DIY job - expect 2 to 4 hours with proper tools. You'll need a spring compressor if the arm is integrated with a strut assembly, and a quality torque wrench is non-negotiable. Suspension fasteners on BMW must be torqued with the suspension at ride height, not hanging free - skipping this step preloads bushings incorrectly and destroys them prematurely. This is the single most common installation mistake.
Rear control arms on the E46, E9X, and F3X multi-link setups are more involved. The E46 rear subframe has five control arms per side, and it's smart to replace them as a complete kit rather than chasing individual failures. Check for subframe bushing wear while you're in there - collapsed subframe bushings on the E46 are a well-documented issue that can cause rear toe changes under acceleration. We carry everything you need in our Subframe & Differential Bushings section.
After any control arm replacement, a four-wheel alignment is mandatory - not optional. Even if the new arms are torqued correctly, camber and toe will shift from the old worn positions. Budget $80–$150 for the alignment and factor it into your project cost upfront. Skipping it means you're running mystery geometry and burning through your new tires.
If you're also addressing steering feel and feedback while you're in the front end, pair this job with fresh tie rods and steering components - labor overlap makes the combined repair far more cost-effective than two separate jobs.
