Alfa Romeo 159 VIN Decoder

Decode any Alfa Romeo 159 VIN free in under three seconds. Type the 17-character vehicle identification number into the decoder above and pull the World Manufacturer Identifier, chassis type code, and plant of origin, plus a guide to what the rest of the VIN can and cannot tell you.

One thing to know up front: the Alfa Romeo 159 was never sold new in the United States. It was a European and export-market sedan and estate built from 2005 to 2011, and because it was never federalized for US sale, NHTSA’s vPIC database has almost no model-specific data for it. If you are importing, restoring, or researching a 159, this page tells you honestly what the VIN structure reveals and where it runs into real limits, based on genuine decoded VINs rather than a guessed table.

About the Alfa Romeo 159

The 159 replaced the Alfa Romeo 156 as the brand’s D-segment sedan, unveiled at the 2005 Geneva Motor Show, with production at Alfa Romeo’s Pomigliano d’Arco plant near Naples, Italy, from late 2004 through 2011. Internally, Alfa used the type code 939 for the whole family, a code that shows up directly inside the VIN of every 159 checked for this guide. The nameplate was retired in 2011 without a direct successor; Alfa’s D-segment gap was eventually filled by the Giulia in 2016.

The 159 rides on the GM/Fiat “Premium” platform, a joint General Motors and Fiat Group architecture also used under the second-generation Fiat Croma (2005 onward) and the Alfa Romeo Brera coupe and Spider convertible, sharing much of the 159’s front structure and running gear. A 5-door Sportwagon estate joined the 4-door sedan (berlina) at the 2006 Geneva Motor Show, about a year after launch, and both were built together at Pomigliano d’Arco through the end of production.

Series	Years	Notable changes	Body styles
939, pre-facelift	2005-2008	Launch series; Sportwagon added MY2006	Sedan, Sportwagon
939, facelift	2008-2011	Lighter trim, “Q2” limited-slip diff standard, 1750 TBi added MY2009	Sedan, Sportwagon

Alfa Romeo also built a Q4 all-wheel-drive variant using a Torsen Type-C twin-differential system (front and center differentials combined in one unit), offered alongside the range-topping 3.2-liter V6 and the 2.4-liter JTDM diesel. Every other engine was front-wheel drive only.

The lineup spanned four gasoline displacements and three diesel ones:

Fuel	Engine	Approx. output	Notes
Petrol	1.75L turbo I4 (1750 TBi)	200 PS	Added MY2009, direct injection
Petrol	1.8L I4	140-141 PS	Entry-level, port injection
Petrol	1.9L JTS I4	160 PS	Direct injection
Petrol	2.2L JTS I4	185 PS	Direct injection
Petrol	3.2L V6 JTS	260 PS	FWD or Q4 AWD
Diesel	1.9L JTDM (8V/16V)	120-150 PS	Common-rail Multijet
Diesel	2.0L JTDM	170 PS	Common-rail Multijet
Diesel	2.4L JTDM (20V)	200-210 PS	Available with Q4 AWD

Alfa Romeo 159 WMI codes (positions 1 to 3)

Every genuine 159 VIN we located and checked, pulled from real dealer, auction, and salvage listings spanning 2007 through 2010 models, starts with the same three characters:

WMI	Country	Manufacturer	Notes
ZAR	Italy	Alfa Romeo S.p.A.	Confirmed on real 2007, 2009, and 2010 159 VINs

NHTSA’s vPIC WMI database lists two codes registered to Alfa Romeo S.p.A.: ZAR (passenger car, created 2015) and ZAS (MPV, created 2017). Both dates are after the 159 stopped production, reflecting when NHTSA’s table was last refreshed, not when the codes came into use; ZAR appears on 159s built as early as 2005. We found no 159 VIN using a code other than ZAR, so we’re not listing one, since inventing a second WMI without a real VIN behind it would be a guess, not a fact.

How to read an Alfa Romeo 159 VIN, position by position

The 159 uses the 17-character ISO 3779 format, the global standard behind every modern VIN. What differs from a US-market car is how much of that standard Alfa Romeo actually used, since the 159 was never subject to the US check-digit and model-year rules under FMVSS 565.

Positions 1 to 3: World Manufacturer Identifier

ZAR on every confirmed 159 VIN. Z marks Italy as the country of manufacture, A identifies the Alfa Romeo / Fiat manufacturer group, and R narrows it to Alfa Romeo passenger cars.

Positions 4 to 8: Vehicle Descriptor Section (VDS)

Here is where we want to be upfront about what we found rather than what a generic table would suggest. On every real 159 VIN checked, whether a 2007 3.2 V6 Q4 Sportwagon, a 2009 1.75 TBi sedan, or a 2010 2.4 JTDM diesel sedan, positions 4 through 8 read identically: 93900. The 939 matches Alfa’s internal chassis type code. Unlike the Giulia, where position 8 reliably flags a four-cylinder versus the V6, the 159’s VDS block in our sample didn’t vary by engine or body. If that holds fleet-wide, the VIN alone can’t tell you whether a 159 is a sedan or Sportwagon, or which engine it carries; that comes from the registration document, not these five characters.

Position 9: Check digit

Under the North American convention, position 9 is a computed checksum run through a fixed weighting formula. On the 159 VINs examined, this position was consistently 0, unchanged across three cars with different serial numbers. NHTSA’s own vPIC decoder, run against one of these VINs, explicitly flags the check digit as failing validation. That’s expected: Alfa never needed a valid FMVSS 565 checksum on a car it never intended to certify for US sale, so position 9 is best treated as internal numbering rather than a working checksum.

Position 10: Model year

Most VIN guides assume this position works the same way everywhere, and it’s worth being direct about the 159: it does not. Every real 159 VIN decoded, spanning 2007, 2009, and 2010 models, carries the same character in position 10: 0. NHTSA’s decoder flags 0 as an invalid model-year character outright, since 0 has never been assigned a year under the 30-year cycle (skipped for the same reason O is, to avoid confusion with the numeral). Position 10 on a 159 is not a year code; it’s part of a fixed block ahead of the car’s true serial number.

For reference, here is the standard ISO 3779 30-year model-year cycle for the range the 159 was built in. This is the general industry table, and the one this decoder falls back to when a VIN does follow the convention; treat it as informational for the 159 rather than confirmed to work on this specific model.

Character	Model year
5	2005
6	2006
7	2007
8	2008
9	2009
A	2010
B	2011

(I, O, and Q are never used in this position on any VIN, under any convention, because they can be misread as 1 and 0.) If you need the confirmed model year of a specific 159, the registration document, service history, or a build-plate reading is more reliable than position 10 alone.

Position 11: Assembly plant

Every 159 VIN in our sample carries 7 at position 11, regardless of build year. Alfa Romeo built the 159 at one plant, Pomigliano d’Arco near Naples, so a constant character is exactly what you’d expect; there was never a second factory to distinguish from. Alfa hasn’t published a table confirming 7 as an official plant code, so we’re reporting it as an observed pattern, not a manufacturer-confirmed fact.

Positions 12 to 17: Serial number

The final six digits form a sequential production number. In our sample the serials rose in step with build date: the 2007 car’s serial was lower than the 2009 car’s, which was lower than the 2010 car’s, consistent with one continuous production count rather than a counter that resets yearly. This block is what actually makes each 159 VIN unique; positions 1 through 11 were identical across every real VIN found.

Where to find the VIN on an Alfa Romeo 159

The 159 was never required to carry a windshield-visible VIN tag; that’s a US federal labeling rule, not a European one. Instead, look for the VIN in these locations:

• Stamped directly into the chassis frame in the front footwell, under the carpet
• Embossed on the right-hand front strut top, visible with the hood (bonnet) open
• On a plate beneath the passenger-side floor mat, or to the right of the passenger seat
• Printed on the vehicle registration document (libretto in Italy, or the equivalent logbook elsewhere in Europe)

If you’re buying a used 159, check that the chassis-stamped number, the registration document, and any dealer paperwork all match exactly before relying on any of them.

Alfa Romeo 159 recalls and safety information

Because the 159 was never sold new in the US, it doesn’t appear in NHTSA’s recall tool at all; that database only tracks federalized vehicles. The relevant authorities are European: Italy’s Ministero delle Infrastrutture e dei Trasporti, the UK’s DVSA, Germany’s KBA, or the equivalent transport ministry wherever the car is registered.

One documented campaign affecting the 159 is the industry-wide Takata airbag inflator recall, which UK recall-aggregator data lists as covering the 159 alongside older Alfa Romeo models like the MiTo, Giulietta, Brera, and Spider. We’re flagging this because it showed up in a general recall database, not because we have an official campaign reference number to cite. The safest path: confirm your car’s build details from its registration document and chassis stamp, check your country’s official recall database using the VIN or chassis number, then contact an Alfa Romeo-authorized service center to confirm whether any open campaign applies. Recall repairs are free regardless of the car’s age, mileage, or ownership history, wherever the campaign is still open.

Frequently asked questions

Why wasn’t the Alfa Romeo 159 sold in the United States?

Alfa Romeo withdrew from the US market in 1995 and didn’t return with a full lineup until the 4C in 2014, followed by the Giulia in 2017. The 159 (2005-2011) fell entirely inside that gap, so Alfa never federalized it, meaning no US crash testing, emissions certification, or required lighting and bumper equipment. Some early 2005 cars are now old enough, or soon will be, to qualify for personal import under the federal 25-year exemption, part of why interest in decoding these VINs has grown.

How do I decode an Alfa Romeo 159 VIN?

Type the 17-character VIN from the chassis stamp, strut top, or registration document into the decoder above. Because the 159 was never sold in the US, expect the decode to confirm manufacturer and WMI reliably, while model year, plant, and trim need cross-checking against the car’s own paperwork.

What does a 159 VIN starting with ZAR mean?

ZAR is the World Manufacturer Identifier for Alfa Romeo S.p.A. in Italy. Every real 159 VIN checked for this guide, across three separate model years, starts with ZAR. It confirms Alfa Romeo build origin; it does not by itself confirm sedan versus Sportwagon or which engine is fitted.

Does the 159 VIN tell me if it is a Sportwagon or has the Q4 all-wheel-drive system?

Not reliably. In every real 159 VIN examined, positions 4 through 11 were identical regardless of body style, engine, or drivetrain. To confirm a Sportwagon or Q4 car, check the registration document, build plate, or the car itself (the Sportwagon has a different rear body, Q4 cars carry Q4 badging) rather than relying on the VIN alone.

Is the Alfa Romeo 159 the same as the classic Alfa 158/159 Grand Prix car?

No, and it’s worth clearing up since the numbers overlap. The Alfa Romeo 158 and 159 “Alfetta” were Grand Prix racing cars built 1938 to 1951, decades before the VIN standard existed and unrelated to the road-going 2005-2011 sedan here. For a pre-war or pre-1981 Alfa Romeo, our classic car VIN decoder guide explains those older, non-standardized numbers.

Is the Alfa Romeo 159 VIN decoder really free?

Yes. VinDecoderPlus decodes the 159’s manufacturer and structural data free, with no sign-up. Because this model was never sold in the US, the decode is more limited than on a federalized car; a full vehicle history report is available as a paid upgrade for accident, ownership, and title information a VIN alone can’t provide.

Can a 159 VIN be faked or cloned?

Yes, the characters can be copied onto a fake plate or registration document. Since the 159’s check digit at position 9 doesn’t function as a real validation checksum the way it does on a US-market car, that safeguard doesn’t apply here; instead, compare the chassis-stamped number, the strut-top number, and the registration document, which should all match. Our guide on how to check if a car is stolen by VIN covers verification steps that still apply to a European car like the 159.

Decode any Alfa Romeo 159 VIN free

Type your 17-character 159 VIN into the decoder above for an instant breakdown of what it can confirm. To go deeper into VIN structure or Alfa Romeo’s lineup:

• Alfa Romeo VIN decoder hub for the brand-wide guide
• How to read a VIN number for the general ISO standard
• What every character in a VIN means for a position-by-position reference
• VIN decoder vs. vehicle history report for what a decode covers versus what it doesn’t