MajorCommonBody & Rust

Subaru Legacy: Rust in JDM imports — arches, sills, underbody and tailgate seams

Rust in JDM imports — arches, sills, underbody and tailgate seams is a common body & rust fault on the Subaru Legacy on the 2003–2014 cars, and we rate it major. Putting it right costs $500 to $3,000 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 54 documented faults on the Subaru Legacy.

Vehicle: Subaru Legacy
Years: 2003–2014
System: Body & Rust

This page covers the Subaru Legacy as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Subaru Legacy faults54 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Chassis and structural rust or Body corrosion yet. We would rather show none than show a picture of a different part.

What goes wrong

The NZ Legacy fleet is dominated by ex-Japan imports (B4 sedans and Touring Wagons), and cars from snow-belt prefectures carry salt-road corrosion: rear arch lips, sill seams, jacking points, rear subframe, fuel tank straps and, on wagons, the tailgate lower seam and around the rear wiper. Surface rust underneath is near-universal on older imports; the deal-breakers are perforation at seams and structural rust that fails a WoF. Repairs are labour-heavy panel work.

What you would notice

Bubbling on rear arch lips
Rust bleed at the wagon tailgate seam
Crusty jacking points and sill seams
Heavy scale on rear subframe and suspension arms

How to check it

Where to look. Rear arches, sills, jacking points, rear subframe, wagon tailgate lower seam

Check rear arch lips by feel, sills and jacking points on your knees, and the underbody with a torch — ideally on a hoist.
On wagons, open the tailgate and inspect its bottom seam and the wiper surround.
Lift the boot floor for wet or rusty seams.
Look up the import year on the vehicle's registration record; recent imports deserve extra scrutiny underneath.

Parts involved: Chassis and structural rust, Body corrosion.

What it costs to put right

$500 to $3,000 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.

Ask the seller

“When was it imported and from where in Japan?”
“Any rust remediation done at compliance or since?”

Now check the Subaru Legacy you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in the sources below. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them.

ClubSUB (NZ) JDM Legacy rust discussions
NZTA used-import corrosion inspection criteria
legacygt.com JDM import condition threads

Subaru Legacy buyer questions

Is rust in jdm imports — arches, sills, underbody and tailgate seams serious on a Subaru Legacy?

We rate it major and common on the Subaru Legacy. The NZ Legacy fleet is dominated by ex-Japan imports (B4 sedans and Touring Wagons), and cars from snow-belt prefectures carry salt-road corrosion: rear arch lips, sill seams, jacking points, rear subframe, fuel tank straps and, on wagons, the tailgate lower seam and around the rear wiper. Surface rust underneath is near-universal on older imports; the deal-breakers are perforation at seams and structural rust that fails a WoF. Repairs are labour-heavy panel work.

How much does it cost to fix on a Subaru Legacy?

$500 to $3,000 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Subaru Legacy years are affected?

Our research records this fault on the 2003–2014 Subaru Legacy. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Check rear arch lips by feel, sills and jacking points on your knees, and the underbody with a torch — ideally on a hoist. On wagons, open the tailgate and inspect its bottom seam and the wiper surround. Lift the boot floor for wet or rusty seams. Look up the import year on the vehicle's registration record; recent imports deserve extra scrutiny underneath. Look here: Rear arches, sills, jacking points, rear subframe, wagon tailgate lower seam