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Diagnostic trouble code · Volkswagen

P309D on Volkswagen vehicles

P309D is named on 7 Volkswagen model years (2016): 58 manufacturer filings and 0 owner reports in NHTSA’s files, across Golf / GTI, CC, Passat, Beetle, Jetta and 2 more.

Powertrain 7 model years 58 manufacturer filings

Which Volkswagen model years name P309D

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2016 Volkswagen Golf / GTIEngine26—
2016 Volkswagen CCEngine7—
2016 Volkswagen PassatEquipment7—
2016 Volkswagen BeetleEquipment6—
2016 Volkswagen JettaElectrical System6—
2016 Volkswagen TiguanPower Train3—
2016 Volkswagen TouaregEquipment3—

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Equipment 16 Engine 13 Fuel/Propulsion System 6 Steering 4
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Volkswagen filings that name P309D

Source: NHTSA manufacturer communications

Bulletins and campaigns Volkswagen filed with NHTSA whose summary names P309D. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P309D means

Source: SAE J2012 / OBD-II

P309D is a manufacturer-specific code: the second character is a 3, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.

A stored code names the test that failed, never the part that caused it. The record above is what Volkswagen and its owners have filed about it; the code’s page across every make has the whole file.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is P309D a known problem on Volkswagen vehicles?

It is a documented one: NHTSA's files hold 58 manufacturer filings and 0 owner reports naming P309D on 7 Volkswagen model years (2016). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.

Which Volkswagen models does P309D appear on most?

2016 Golf / GTI (26 documents), 2016 CC (7 documents), 2016 Passat (7 documents).

Does P309D on a Volkswagen mean it is recalled?

No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.