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Transaction No.: 2033846

Technical Service Bulletin

/25

00-17-13 - Fuel Additive to Help Prevent Sporadic Misfire Faults (Gasoline
Engines Only)

Condition
Applicable Vehicles
Model(s)

Year

Eng. Code

Trans. Code

VIN Range
From

VIN Range To

All

2006-2026

All Gasoline
Engines

All

All

All

(Except
Routan, ID.4,
ID.Buzz)

Revision Table
Instance Number

Published Date

Version Number

Reason For Update

2033846/25

10/6/2025

00-17-13

Update to include
MY2026 vehicles.

2033846/24

7/22/2025

00-17-13

Update to labor
operations.

2033846/23

9/11/2024

00-17-13

Update to include current
Model Year and fuel
additive part number.

2033846/1

1/15/14

V001401

Original publication.

A Volkswagen approved fuel additive is available to help remove and prevent deposits on fuel injectors and
intake valves.
One or more of the following fault codes may be stored in the ECM Fault Memory:

DTC
P0300

Description
Random/Multiple Cylinder Misfire Detected

P0301-P0308 Cyl.1 Misfire Detected - Cyl.8 Misfire Detected

Technical Background
Fuel quality impacts the operating performance, efficiency and service life of the engine. The use of poor
quality fuels may result in deposit build up on the fuel injectors and intake valves. This may result in a rough
running condition, sporadic misfires, or cold start misfire faults storing in the ECM fault memory.

Production Solution
Not applicable.

Service
If sporadic cylinder misfire faults are found and a P130A Hide Cylinder fault is not present, the concern may
be related to poor quality fuel and/or deposit build-up on the fuel injectors and intake valves.
With the fuel tank at least half full, pour 1 bottle of fuel additive part number G 001770A2 into the fuel tank
and drive the vehicle with the transmission in the “S” (Sport) selection to help dissolve any deposits in the
engine.

NOTICE
Only one bottle of fuel additive is covered under warranty.

If no concerns are found during the test drive, return the vehicle to the customer. Advise the customer to use
quality detergent gasoline from a Top Tier fueling station as noted in their owner’s manual or in the 2020 VW
Top Tier Fuel Brochure. If available, provide a printed copy of the brochure to the customer.
If misfire faults return during the test drive, follow Technical Bulletin 2033805 Engine, Misfire Diagnostic Aid
to further diagnose the concern.

Volkswagen recommends Top Tier detergent gasoline with additives that do not contain metal. If Top Tier
fuel is not readily available, advise the customer that to help prevent this condition from reoccurring, fuel
additive part number G 001770A2 may be used approximately every 3000 miles (5000 km) to help keep the
fuel injectors and intake valves clean.
Depending on the severity of the case, the customer may need to add a second bottle of additive to help
remove all deposits after driving approximately 100 miles.
For best results, the fuel tank should be at least half full when the cleaner is added. If there is less than half
a tank of fuel when added, the additive will not be as effective.
The customer may purchase this fuel additive from the parts department, and should pour the additive into
the fuel tank when re-fueling.
For more information on Top Tier Detergent Gasoline, please go to the official website: http://www.toptiergas.
com.
Only use fuel additives approved by Volkswagen.

Warranty

To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and
Procedures Manual 1)
Model(s)

Year(s)

Eng. Code(s)

Trans. Code(s)

VIN Range
From

VIN Range To

2006-2026

All Gasoline
Engines

All

All

All

All
(Except
Routan, ID.4,
ID.Buzz)

SAGA Coding
Use applicable Claim Type 1)

Claim Type:

Service Number:

2440

Damage
Code

HST

Damage Location
(Depends on Service
No.)

--

--

0016

Labor Operation 3): GFF functions (including Battery
Charge)

01500010 = See Elsa for latest time units

Labor Operation 3): Fuel Additive

20103399 = 10 TU max.

Causal Part: Select Labor Operation

20103399

Outside Material: 2020 Top Tier Fuel
Brochure

VWTOPTIERMAY20

$1.50

Diagnostic Time 4)
GFF Time expenditure

01500060 = 20 TU max.

YES

Road Test

01210004 = 10 TU max.

YES

Technical Diagnosis

01320000 = 00 TU max.

NO

Claim Comment: Input “As per Technical Bulletin 2033846” in comment section of Warranty Claim.
1)

Vehicle may be outside any Warranty in which case this Technical Bulletin is informational only.

2)

Code per warranty vendor code policy.

3)

Labor Time Units (TUs) are subject to change with ELSA updates.

4)

Documentation required per Warranty Policies and Procedures Manual.

Required Parts and Tools

Part Description

Part Number

Quantity

Injector Cleaner

G 001770A2

1

2020 VW Top Tier Fuel Brochure

VWTOPTIERMAY20

1

No special tools required.

Additional copies of the brochure may be ordered from Volkswagen Technical Literature Ordering Center at
https://literature.vw.com.

Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.
© 2025 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is
based on the latest information available at the time of printing and is subject to the copyright and other
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