Alfa Romeo 166 Service & Repair Manual 2002–2003

Service and repair manuals for 2 model years of the Alfa Romeo 166, 2002 to 2003. Each manual is matched to one exact year — the specifications and procedure sequences are the ones Alfa Romeo published for that year's engine and trim, not values carried across the whole production run.

Engines across the range: 3.0L V6 — 181 cu in, DOHC.

01 / Model yearsChoose your 166 year

YearPriceRecallsEnginesTrims
2003 $29.99 3.0L V6 Base Sedan 4-Door select
2002 $29.99 3.0L V6 Distinctive Sedan 4-Door select

02 / Other yearsOther 166 years

2003 Alfa Romeo 166 · $29.99 select →

Engines: 3.0L V6 — 181 cu in, DOHC. Trims: Base Sedan 4-Door.

No recalls on federal record for the 2003 166.

2002 Alfa Romeo 166 · $29.99 select →

Engines: 3.0L V6 — 181 cu in, DOHC. Trims: Distinctive Sedan 4-Door.

No recalls on federal record for the 2002 166.

03 / OwnershipOwn it — don't rent it

OptionWhat you payAfter a year
eManualStore 166 manual$29.99 onceStill yours
Per-vehicle online subscriptionfrom $29 / year, renewingPay again or lose access
Library membership services$33 / month, capped$396 spent, nothing kept
Professional shop databases$499–$2,388 / yearRenew or lose access

Competitor figures as published on their sites, August 2026.

FAQQuestions about the 166 manual

Which 166 years does this manual cover?

Every year from 2002 to 2003 — 2 separate manuals, one per model year. Pick your year in the selector; the manual you receive is matched to that exact year, engine and trim.

Is this the OEM Alfa Romeo 166 manual or an aftermarket guide?

The OEM version. It carries the procedures, specifications, torque values and wiring diagrams Alfa Romeo published for the 166, organized by system — not a condensed aftermarket summary.

Does it include 166 wiring diagrams?

Yes. Full wiring diagrams are part of every 166 manual, alongside repair procedures, specifications and diagnostic information.

Why do some 166 years cost more?

Every 166 year is $29.99.

Is this a subscription?

No. One payment, and the manual is yours to keep — unlike per-vehicle subscriptions that renew every year.

How do I get the manual after purchase?

It is a digital manual — nothing ships. Access details arrive by email right after checkout, and you can use it on any device.

RelatedSame-era Alfa Romeo manuals

By year: 2003 · 2002