Parts for your 1999 Toyota Avensis-Bump stops

1999 Toyota Avensis Bump Stops — What They Do and When to Replace Them

Yes, bump stops are fitted to the 1999 Toyota Avensis (T22). Technical references that identify the part include: Toyota Avensis 1997–2003 Repair Manual (Chassis/Suspension) showing the strut “spring bumper”, Toyota Electronic Parts Catalogue (EPC) listing “Bumper, front spring” and “Bumper, rear spring”, the Haynes Toyota Avensis Petrol & Diesel 1998–2003 manual (No. 3519), and KYB service guidance noting the bump stop within the protection kit for struts.

The Avensis’ bump stops (also called jounce bumpers) are small but critical bits of foam or rubber that sit on the shock/strut rod under the dust boot. Their job is to provide a soft, progressive cushion right at the end of the suspension’s travel. That way, when the car hits a nasty pothole, speed hump, or corrugations, the suspension doesn’t smash metal-on-metal. On this model, the front MacPherson struts and the rear suspension both rely on bump stops to protect the dampers, control arms, and body mounts from harsh bottoming, and to keep the tyres clear of the guards under full compression.

As part of regular servicing, it’s smart to inspect the bump stops every 10,000–15,000 km or at least once a year. If the car has done a lot of country kilometres, towed, or carried heavy loads, step up the checks. Look for cracking, missing chunks, oil swelling from a leaking strut, or a stop that’s collapsed and no longer “springy”. If the dust boot is torn, road grit will chew the stop out faster. A sharp thud over big bumps, or the feeling of the suspension “hitting the deck”, are classic clues the stops are past it.

Best practice is to replace bump stops whenever shocks/struts are renewed, and to do them in axle pairs (both fronts or both rears) so the car behaves evenly. Use OE-quality or reputable aftermarket stops and always fit new dust boots at the same time. On the front of the Avensis, replacing the stop requires removing the strut and safely compressing the coil spring, follow the workshop manual and torque specs, and consider a wheel alignment afterwards. On the rear, design varies by variant, but the principle’s the same—if the damper’s out, the stop should be refreshed.

Lowered ride height or heavy-duty springs? Consider slightly firmer, compatible bump stops to maintain proper jounce clearance. And yes, a WOF or rego inspection can ping obviously perished or missing stops, especially if there’s evidence of metal contact or damaged dampers.

• Signs it’s time: repeated bottoming thuds, perished rubber/foam, torn dust boots, or leaking shocks.
• Pro tip: replace stops with the dampers—saves labour and keeps the ride tidy.

FAQs

Does a 1999 Toyota Avensis have bump stops?
Absolutely. Both the front MacPherson struts and the rear suspension include bump stops (jounce bumpers). They’re shown in the Toyota chassis manual and listed in the Toyota EPC as spring bumpers.

How often should bump stops be replaced?
There’s no fixed interval. Inspect them at each service. Replace if cracked, oil-soaked, or collapsed—and always when fitting new shocks/struts. In typical Aussie and Kiwi conditions, many last years, but age, heat, and leaks can speed up deterioration.

Can worn bump stops cause a WOF or rego issue?
They can. Severely perished or missing stops can lead to metal contact and poor control, which may attract a fail or advisory. Even before that, the car may bottom out with a harsh thud and chew through the dampers.