How to Read a Japanese Auction Sheet
A Japanese auction sheet looks like a closed code: a single overall grade, two or three letters, a diagram of the car covered in abbreviations. To an untrained buyer, it's unreadable. That's exactly why so many importers rely on the grade number alone β and pay for it later, in the form of unexpected repair costs or a compliance rejection.
At JDM Heaven, reading these sheets correctly is part of daily work. Here's what actually matters before you bid on a vehicle bound for Europe.
The Grade Number Is Not the Whole Story
Every vehicle receives an overall grade from 0 to 6. The higher the number, the better the condition: a 6 is effectively new, a 5 has no notable faults, and anything under 3 signals a car that needs real work before it's road-ready.
That number alone says nothing about why a car landed where it did. A 3.5 might mean light scuffing on a bumper. It might also mean a rear panel was replaced after a collision. Same grade, two very different vehicles. This is where most buying mistakes happen β filtering by grade number and stopping there.
Our working threshold is grade 4 for a standard purchase, rising to 4.5 for anything under six years old. Below that, repair costs combined with shipping and compliance fees rarely make the numbers work.
Interior Grading (A to D)
Interior condition is graded separately from the body:
- A β essentially as new
- B β clean, minor wear, still very presentable
- C β average for the vehicle's age. Expected on a fifteen-year-old car, a warning sign on a two-year-old one.
- D β cigarette damage, tears, missing trim, or genuinely poor condition
Some auction houses add a third letter for body condition, producing notations like "4 B B" β overall grade, interior, body.
Reading the Damage Codes
This is where the real information sits, and where less rigorous agents cut corners.
XX on the diagram means a panel has been replaced or repainted.
W flags uneven paint β this can mean a respray, a factory finish variation, or occasionally an inspector's misjudgement. The scale runs W1 to W3, with W1 usually not worth worrying about.
A marks a scratch. A1 buffs out. A2 goes through the clear coat. A3 needs proper paintwork.
U is a small dent, the kind picked up in any car park. B marks larger, more noticeable dents, graded B1 to B4.
Y covers cracks, usually in trim or lighting β rarely a serious issue.
S and C flag rust or corrosion, and this one deserves close attention. A C1 might just be surface rust on a sunroof edge. A C marking around the wheel arches usually means the car spent winters somewhere its roads were salted. We physically check every car for rust during inspection, regardless of what the sheet says β even a 4.5-graded vehicle can turn out corroded underneath.
One marking deserves absolute caution: any A, 0, or R notation tied to a repair indicates accident damage. Variants like RA, A1, or R1 typically point to minor repairs. But any repair affecting the rear structure or chassis rails is a compliance dealbreaker across the EU and UK β inspection authorities reject these outright. We exclude these vehicles the moment they're identified, without exception.
Grade 1, separately, generally flags a modified vehicle: a turbo upgrade, a swapped transmission, engine work, or track preparation. Not necessarily a problem, but it changes the conversation with the client.
Why the Sheet Alone Isn't Enough
Something most import guides leave out: a meaningful share of vehicles at Japanese auction have already been bought and resold once or more by dealers moving cars between auction houses for a quick margin. Without knowing a car's auction history, you risk bidding on β and paying for β someone else's markup on the exact same vehicle.
Before bidding seriously on any car, we check its auction history: prior listings, any grade upgrade following a re-list after repair, or repeated passed-in status, which usually signals a condition or reserve price out of step with reality. This runs alongside a physical inspection β engine running, transmission tested, full photographs including the underbody.
Key Takeaways
- The grade number gives a general indication, not an explanation
- Read the damage codes before getting attached to a listing
- Rear-structure or chassis-rail repairs are a hard pass for EU/UK compliance
- Rust markings near the wheel arches always warrant a closer look
- Check auction history before you bid, never after
This is the level of scrutiny that separates a genuinely good buy from an expensive mistake. At JDM Heaven, it's exactly the work we carry out on every vehicle before it's offered to our clients across Europe.
β JDM Heaven