Parts for your 2001 Daihatsu Yrv-Control arms

2001 Daihatsu YRV Control Arms: What They Do and When to Service Them

Based on the Daihatsu YRV (M201/M211) Workshop Manual suspension section, Autodata chassis specifications for the 2001 model, and listings in the Daihatsu Electronic Parts Catalogue, the 2001 Daihatsu YRV is fitted with front lower control arms. The front uses a MacPherson strut setup with a lower control arm (also called a wishbone or track control arm) carrying a ball joint and two rubber bushes. The EPC lists “Arm Assy, Front Lower, LH/RH” for this vehicle, which confirms factory fitment. The rear runs a torsion-beam/trailing-arm arrangement, so “control arms” on a YRV almost always refers to the front lower arms.

The front control arm locates the hub fore–aft and laterally, sets static camber and helps define caster, and lets the strut move through its travel while keeping the tyre planted. Its bushes isolate vibration, while the ball joint lets the steering knuckle pivot smoothly. Healthy arms keep the car tracking straight, braking stable, and steering feel tidy—especially important on coarse-chip Kiwi and Aussie roads where worn bushes can quickly show up as twitchiness.

Common signs it’s time for attention include clunks over bumps, vague steering, shimmy under braking, and uneven tyre wear on the inside or outside edges. Split ball‑joint boots or perished inner/outer bushes are the usual culprits. On many aftermarket options the ball joint is integral to the arm, some OE listings show a serviceable joint—check the EPC or a reputable parts catalogue when ordering to avoid surprises on the hoist.

For servicing, a visual check at every WOF/roadworthy or 20,000 km is a smart habit. If replacing arms or bushes:

• Torque the inner pivot bolts at normal ride height to avoid pre-loading the bushes.
• Replace left and right as a pair where possible, and use new self-locking nuts on the ball joint.
• Inspect sway-bar links, strut top mounts, and tie-rod ends at the same time, worn mates can mask or mimic arm issues.
• After any arm or bush work, book a proper four-wheel alignment, it protects tyres and restores steering feel.
• Choose quality rubber or reputable polyurethane bushes, firmer compounds can add NVH, which may not suit daily use.

Those recommendations align with workshop manual practices and typical guidance from Autodata and major bush/arm suppliers’ fitment notes for the YRV platform.

Does the 2001 Daihatsu YRV have control arms?

Yes. Up front it uses MacPherson struts with lower control arms that carry a ball joint and bushes. The rear is a torsion-beam/trailing-arm design, so there aren’t conventional rear control arms to service.

How long do the control arm bushes last on a YRV?

Expect anywhere from 80,000 to 150,000 km depending on road quality, driving style, and load. Watch for clunks, vague turn-in, or uneven tyre wear. If one side has failed, the other often isn’t far behind.

Do I need a wheel alignment after replacing a control arm?

Definitely. Even if no adjustment bolts were touched, bush compliance and ball-joint position affect camber and toe. A four-wheel alignment will protect your tyres and sharpen up the steering.