Parts for your 2007 Lexus Is-Control arms

2007 Lexus IS Control Arms — What They Do and When to Service Them

Control arms are absolutely used on the 2007 Lexus IS range. Lexus/Toyota technical references for the XE20 platform (IS250/IS350/IS F) state the car runs a double-wishbone front suspension (upper and lower control arms) and a multi-link rear setup with multiple control arms per side. This layout is detailed in the Lexus New Car Features (NCF) manual for the GSE2x series, the factory Repair Manual, and the Toyota/Lexus Electronic Parts Catalogue, as well as independent workshop databases used across AU/NZ.

On this model, the control arms locate the wheels precisely while the bushes and ball joints manage movement and keep road harshness in check. Up front, the double wishbones give sharp steering feel and stable braking, while the rear multi-link arms keep the back end planted and compliant. When the rubber bushes crack or the ball joints wear, the IS can start to wander, clunk over bumps, or wear tyres on the inner or outer edges.

As part of servicing a 2007 Lexus IS, it’s smart to:

• Inspect front upper/lower arm bushes and ball joints every 20,000–30,000 km or yearly, especially if driving on rough roads.
• Look for torn or leaking bushes, split dust boots, rust bleed around ball joints, and any free play using a pry bar.
• Check for symptoms: steering shimmy under brakes, clunks on take-off or over speed humps, vague steering, and uneven tyre wear.

Replacement can be done as complete arms (common and time-efficient) or by pressing in new bushes/ball joints where serviceable. Many owners choose full arm assemblies for the front lower arms due to integrated ball joints and large fluid- or rubber-filled bushes. Always torque fasteners at normal ride height to avoid preloading the bushes, and replace any single-use nuts/bolts as specified in the repair manual. A four-wheel alignment is a must after any control-arm work, and it’s good practice to do both sides if one has clearly failed.

Quality aftermarket arms and OE parts are both widely available in AU/NZ. For a quiet cabin and crisp handling, fresh control-arm bushes and joints make a noticeable difference, often restoring that Lexus-tight feel and saving tyres over the next 20,000–40,000 km.

Popular questions about 2007 Lexus IS control arms

How do you know the control arms need attention on a 2007 Lexus IS?
Tell-tales include clunks over bumps, steering that tramlines, a knock when braking or taking off, and uneven tyre wear. A mechanic can confirm by checking bush cracks, split ball-joint boots, or any looseness with the suspension loaded and unloaded.

Can just the bushes or ball joints be replaced, or do you need complete arms?
Both options exist. Some arms accept replacement bushes/ball joints, but many owners go for complete arms to save labour and get new joints and bushes in one hit. Availability depends on which arm and brand you choose.

Do you need a wheel alignment after changing control arms?
Yes. Any change to arms or bush position will alter geometry. A proper four-wheel alignment resets camber, caster, and toe so the IS tracks straight and avoids chewing out tyres.