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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10238937
Published by NHTSA2023-07-10
Manufacturer's numberTT011401
Manufacturer's date2014-01-24
NHTSA componentPOWER 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

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Transmission and driveline

Vehicles listed
VOLKSWAGEN CC2008 to 2011
VOLKSWAGEN CC2012
VOLKSWAGEN CC2013
VOLKSWAGEN CC2014
VOLKSWAGEN EOS2008, 2009, 2010, 2011, 2012, 2013, 2014
VOLKSWAGEN GOLF2008 to 2009
VOLKSWAGEN GOLF2010, 2011, 2012, 2013, 2014
VOLKSWAGEN JETTA2008, 2009, 2010, 2011, 2012, 2013, 2014
VOLKSWAGEN PASSAT2008, 2009, 2010, 2011, 2012, 2013, 2014
VOLKSWAGEN TIGUAN2008
VOLKSWAGEN TIGUAN2009, 2010, 2011, 2012, 2013, 2014

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20196102019-12-06. Powertrain
19V8660002019-12-06. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:CLUTCH ASSEMBLY
20194232019-08-22. Powertrain
17V3090002017-05-11. POWER TRAIN:DRIVELINE:DRIVESHAFT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL
20172562017-05-10. Powertrain
20141362014-04-16. Powertrain
14V1820002014-04-15. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
13V5680002013-11-14. POWER TRAIN
20134042013-11-13. Powertrain
11V4660002011-09-07. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
V0116152014815_202026-10-06. Service bulletin. Suggested fuel additive
SM 35-20262026-09-04. Other. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
V1718062017813_242026-08-05. Service bulletin. Oil Consumption Measurement and Electronic Oil Consumption Measurement
V1719012012855_812026-07-07. Service bulletin. Volkswagen Engine Oil Standards
TT 13-20-01_32026-07-07. Service bulletin. Instruction, how to lubicate engine before initial start.
TT 10-18-02_22026-07-07. Service bulletin. Lubricating engine components before reassembly.
VOS-26-212026-04-06. Service bulletin. 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_142025-11-10. Service bulletin. Cautions about using aftermarket transmission flush machines and aftermarket transmission fluids.
V3416022034406_82025-11-10. Service bulletin. Diagnosing Manual Transmission Noise
V1917012022548_152025-11-10. Service bulletin. G12Evo can now be mixed with previous coolants.