# Service bulletin TT011401

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10238937
- Published by NHTSA: 2023\-07\-10
- Manufacturer's number: TT011401
- Manufacturer's date: 2014\-01\-24
- NHTSA component: POWER TRAIN; ENGINE AND ENGINE COOLING

## NHTSA's summary

Install a vacuum gauge on the dipstick tube and check crankcase vacuum at idle. Compare to a known good vehicle. If the vacuum reading is lower than the comparison vehicle, visually inspect for oil leaks between the engine and the transmission. Smoke test the crankcase by connecting the EVAP smoke machine to the dipstick tube and inspect for leaks at the rear main seal \(this will limit pressure to 2 PSI\). DO NOT apply shop air to the dipstick tube or the crankcase. If a rear main seal leak is identified, replace the seal.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10238937-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10238937-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Transmission and driveline

## Vehicles listed

- 2008 to 2011 VOLKSWAGEN CC
- 2012 VOLKSWAGEN CC
- 2013 VOLKSWAGEN CC
- 2014 VOLKSWAGEN CC
- 2008 to 2014 VOLKSWAGEN EOS
- 2008 to 2009 VOLKSWAGEN GOLF
- 2010 to 2014 VOLKSWAGEN GOLF
- 2008 to 2014 VOLKSWAGEN JETTA
- 2008 to 2014 VOLKSWAGEN PASSAT
- 2008 VOLKSWAGEN TIGUAN
- 2009 to 2014 VOLKSWAGEN TIGUAN

## Recalls for the same vehicles and component

- [2019610](/recalls/tc/2019610.md), 2019-12-06: Powertrain
- [19V866000](/recalls/nhtsa/19V866000.md), 2019-12-06: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:CLUTCH ASSEMBLY
- [2019423](/recalls/tc/2019423.md), 2019-08-22: Powertrain
- [17V309000](/recalls/nhtsa/17V309000.md), 2017-05-11: POWER TRAIN:DRIVELINE:DRIVESHAFT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [2017256](/recalls/tc/2017256.md), 2017-05-10: Powertrain
- [2014136](/recalls/tc/2014136.md), 2014-04-16: Powertrain
- [14V182000](/recalls/nhtsa/14V182000.md), 2014-04-15: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
- [13V568000](/recalls/nhtsa/13V568000.md), 2013-11-14: POWER TRAIN
- [2013404](/recalls/tc/2013404.md), 2013-11-13: Powertrain
- [11V466000](/recalls/nhtsa/11V466000.md), 2011-09-07: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## Other bulletins for the same vehicles and component

- [V0116152014815\_20](/bulletins/11038146.md), 2026-10-06, Service bulletin: ENGINE. Suggested fuel additive
- [SM 35\-2026](/bulletins/11036867.md), 2026-09-04, Other: ENGINE. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
- [V1718062017813\_24](/bulletins/11035762.md), 2026-08-05, Service bulletin: ENGINE. Oil Consumption Measurement and Electronic Oil Consumption Measurement
- [V1719012012855\_81](/bulletins/11034617.md), 2026-07-07, Service bulletin: ENGINE. Volkswagen Engine Oil Standards
- [TT 13\-20\-01\_3](/bulletins/11034614.md), 2026-07-07, Service bulletin: ENGINE. Instruction, how to lubicate engine before initial start.
- [TT 10\-18\-02\_2](/bulletins/11034613.md), 2026-07-07, Service bulletin: ENGINE. Lubricating engine components before reassembly.
- [VOS\-26\-21](/bulletins/11030847.md), 2026-04-06, Service bulletin: ENGINE. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the error message ERP0204E could occur during perform initial operation, software configuration, SVM updates for any control module\(s\) etc.
- [V3718022033975\_14](/bulletins/11025440.md), 2025-11-10, Service bulletin: POWER TRAIN. Cautions about using aftermarket transmission flush machines and aftermarket transmission fluids.
- [V3416022034406\_8](/bulletins/11025439.md), 2025-11-10, Service bulletin: POWER TRAIN. Diagnosing Manual Transmission Noise
- [V1917012022548\_15](/bulletins/11025437.md), 2025-11-10, Service bulletin: ENGINE. G12Evo can now be mixed with previous coolants.

JSON: [/v1/bulletins/10238937](/v1/bulletins/10238937)

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