Subaru Outback: BR Rear Lateral Link Rubber Bush Deterioration

The BR-generation Outback (2009-2014) uses a multi-link rear suspension with lateral links controlled by rubber-bonded bushes pressed into aluminium housings. The bush compound used in this generation degrades significantly in New Zealand and Australian conditions — a combination of UV exposure, ozone, and road contamination causes the rubber to crack, separate from the inner sleeve, or collapse. Failed bushes allow the rear wheel to adopt incorrect toe angles under cornering loads, introducing oversteer instability and accelerating tyre wear. The condition is often not detected during standard WOF visual inspections because the bush can appear intact externally while the internal bond has failed.

• Vague or nervous rear-end handling under cornering, described as the rear 'stepping out' unexpectedly on smooth road surfaces
• Uneven rear tyre wear — feathering or one-sided wear on the inner or outer shoulder of the rear tyres within 10,000 km of a fresh alignment
• Knocking or clunking from the rear suspension over sharp bumps or during parking-speed manoeuvres
• Rear wheel alignment cannot be held within specification even after adjustment

Any movement in the bush beyond a few millimetres indicates failure. Inspect the visible rubber for cracking, separation from the metal sleeve, or extrusion. Also check the trailing arm front bushes which share the same compound. Request alignment history — repeated toe corrections are a red flag. If a workshop inspection is possible: With the vehicle on a hoist, grasp each rear lateral link and apply rotational and axial load.

$700 to $1,600 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Has the rear suspension been inspected for bush wear, and are there recent alignment records?”
• “How are the rear tyres wearing — can I see the inside shoulders?”
• “Has any knocking or loose-feeling rear end been noticed?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.