NHTSA ID Number: 10122274
Manufacturer Communication Number: QRG - 2014 Passa
TSB/Document Date: 2017-11-08
Summary
2014 Volkswagen
Passat Quick Reference Specification Book This document is an overview which covers -General Information -Vehicle Identification -Sales Codes -Vehicle Lifting -ENGINES -Transmissions
New
0.20 to 0.40
0.25 to 0.50
Wear limit
0.8
0.8
Piston Ring Groove Clearance
Piston ring
Compression rings
Oil scraping ring
mm
mm
Ring to groove clearance
New
Wear limit
0.06 to 0.09
0.20
0.03 to 0.06
0.15
Piston and Cylinder Dimensions
Honing dimension
in mm
Basic dimension
1)
Piston diameter
Cylinder bore diameter
82.465 1)
82.51
Measurement does not include the graphite coating (thickness = 0.02 mm). The
graphite coating wears away.
VW Passat Quick Reference Specification Book
•
February 2014
195
Engine –
2.5L CBTA/CBUA
Honing dimensions
in mm
Basic dimension
Cylinder Head, Valvetrain – 2.5L CBTA,
CBUA
Cylinder Head and Cover Overview
1 - Bolt
10 Nm
Tightening sequence, see Cylinder Head Cover Bolt Tightening
Sequence below
2 - Cylinder Head Cover
3 - Cylinder Head Cover Gasket
4 - Crankcase Ventilation Hose
5 - Oil Fill Cap
6 - Seal
7 - Bolt
10 Nm
8 - Wire Bracket
9 - Seal
196
VW Passat Quick Reference Specification Book
•
February 2014
VW Passat Quick Reference Specification Book
Engine –
2.5L CBTA/CBUA
10 - Wire Bracket
11 - Timing Chain Cover
12 - Bolt
2 Nm
13 - Camshaft Adjustment Valve 1 -N20514 - O-ring
15 - Bolt
10 Nm
16 - Camshaft Position Sensor -G4017 - Transport Strap
18 - Bolt
25 Nm
19 - Cylinder Head Gasket
Always replace
20 - Cylinder Head
21 - Cap
22 - Gasket
Always replace
23 - Bolt
40 Nm + 180° turn
Always replace
24 - Wire Bracket
•
February 2014
197
Camshaft Timing Chain Overview
1 - Intake Camshaft Adjuster
2 - Exhaust Camshaft Sprocket
3 - Cylinder Head
4 - Tensioning Rail
5 - Double Sprocket
6 - Camshaft Timing Chain
7 - Oil Strainer
Always replace
8 - Bolt
10 Nm
9 - Chain Tensioner
10 - Gasket
Always replace
11 - Bolt
Always replace
198
VW Passat Quick Reference Specification Book
•
February 2014
12 - Bolt
60 Nm + 90° turn
Always replace
Engine –
2.5L CBTA/CBUA
13 - Bolt
60 Nm + 90° turn
Always replace
VW Passat Quick Reference Specification Book
•
February 2014
199
Valvetrain Overview
1 - Bolt
8 Nm + 90° turn
Always replace
2 - Guide Frame
3 - Exhaust Camshaft Sprocket
4 - Bolt
60 Nm + 90° turn
Always replace
5 - Bolt
60 Nm + 90° turn
Always replace
6 - Intake Camshaft Adjuster
7 - Seals
8 - Timing Chain
9 - Cylinder Head
200
VW Passat Quick Reference Specification Book
•
February 2014
Engine –
2.5L CBTA/CBUA
10 - Hydraulic Lash Adjuster
11 - Valve Retainers
12 - Spring Seat
13 - Valve Spring
14 - Valve Stem Seal
15 - Valve Guide
16 - Intake Valve
17 - Exhaust Valve
18 - Sealing Plug
Always replace
19 - Intake Camshaft
20 - Exhaust Camshaft
Fastener Tightening Specifications
Component
AIR pipe at cylinder head bolt
Coolant pipe to bracket bolt
Flange to timing chain cover bolt
Timing chain cover to cylinder head bolt
Vacuum pump to timing case bolt
VW Passat Quick Reference Specification Book
Nm
10
10
10
10
10
•
February 2014
201
Valve Dimensions
Dimension
Diameter a
mm
Diameter b
mm
c
mm
α
∠°
Intake valve
26.80 to 27.00
5.95 to 5.97
104.84 to105.34
45
Exhaust valve
29.80 to 30.00
5.94 to 5.95
103.64 to 104.14
45
Compression Pressures
New
Bar positive
pressure
9.0 to 13.0
202
Wear limit
Bar positive pressure
8.0
Difference between
cylinders
Bar positive pressure
Maximum 3.0
VW Passat Quick Reference Specification Book
•
February 2014
Engine –
2.5L CBTA/CBUA
Cylinder Head Cover Bolt Tightening
Sequence and Specification
Step
1
Component
Tighten bolts 1 through 16 in sequence
VW Passat Quick Reference Specification Book
Nm
10
•
February 2014
203
Cylinder Head Bolt Tightening
Sequence and Specification
Step
1
2
Component
Tighten bolts 1 through 12 in sequence
Tighten bolts 1 through 12 in sequence
3
Tighten bolts 1 through 12 in sequence
4
Tighten bolts 13
204
VW Passat Quick Reference Specification Book
Nm
40
an additional
90° (¼ turn)
an additional
90° (¼ turn)
10
•
February 2014
Engine –
2.5L CBTA/CBUA
Guide Frame Bolt Tightening
Sequence and Specification
Step
1
2
1)
Component
Tighten bolts 1 through 7 in sequence 1)
Tighten bolts 1 through 7 in sequence
Nm
8
an additional
90° (¼ turn)
Replace fastener(s).
VW Passat Quick Reference Specification Book
•
February 2014
205
Lubrication – 2.5L CBTA, CBUA
Oil Pan and Oil Pump Overview
1 - Cylinder Block
2 - Reduced Oil Pressure Switch -F37820 Nm
Only installed on vehicles with engine codes CBTA and CBUA.
3 - Reduced Oil Pressure Switch -F37820 Nm
4 - Oil Pressure Regulation Valve -N4285 - Oil Pump Timing Chain
6 - Bolt
20 Nm + 90° turn
Always replace
7 - Oil Pump Sprocket
8 - Oil Pump
9 - Bolt
25 Nm
206
VW Passat Quick Reference Specification Book
•
February 2014
10 - Bolt
VW Passat Quick Reference Specification Book
Engine –
2.5L CBTA/CBUA
25 Nm
11 - Oil Filter Adapter
12 - Oil Dipstick
13 - Circlip
14 - Guide Tube
15 - Engine Pre-Heater
16 - Bolt
25 Nm
17 - O-ring
Always replace
18 - Seal
Always replace
19 - Bracket
20 - Bolt
10 Nm
21 - Lower Oil Pan
22 - Bolt
10 Nm
23 - Oil Drain Plug
30 Nm
24 - Decoupling Element
10 Nm
25 - Oil Intake Pipe
26 - Bolt
25 Nm
27 - Upper Oil Pan
28 - O-ring
Always replace
•
February 2014
207
Oil Filter Adapter Overview
1 - Bolt
25 Nm
2 - Oil Filter Adapter
3 - Gasket
Always replace
4 - Oil Pressure Switch -F120 Nm
5 - Reduced Oil Pressure Switch -F37820 Nm
6 - O-ring
7 - Oil Pressure Regulation Valve -N4288 - Bolt
9 Nm
9 - from Connecting Pipe
10 - Vent Tube
11 - Cap
208
VW Passat Quick Reference Specification Book
•
February 2014
Engine –
2.5L CBTA/CBUA
12 - Oil Filter Housing
25 Nm
13 - Seal
14 - Oil Filter Element
15 - Gasket
Always replace
16 - Engine Oil Cooler
17 - Bolt
25 Nm
18 - to the Thermostat Housing
19 - Gasket
Always replace
Fastener Tightening Specifications
Component
Oil intake pipe-to-oil pump bolt
Oil intake pipe-to-upper oil pan bolt
Upper oil pan-to-cylinder block bolt
VW Passat Quick Reference Specification Book
Nm
10
10
25
•
February 2014
209
Cooling System – 2.5L CBTA, CBUA
Engine Pre-Heater Overview
Not installed on all vehicles.
1 - Guide Tube
2 - Left Cover
3 - Bracket
4 - Connecting Cable
5 - Retainer
6 - from the Oil Cooler
7 - Engine Pre-Heater
8 - to the Coolant Thermostat Housing
9 - Bolt
25 Nm
10 - Adhesive Foil
11 - Bracket with Clamp
210
VW Passat Quick Reference Specification Book
•
February 2014
Engine –
2.5L CBTA/CBUA
VW Passat Quick Reference Specification Book
•
February 2014
211
Coolant Pump and Thermostat
Overview Part 1, Belt Pulley Side
1 - Cylinder Block
2 - Engine Oil Cooler
3 - Bolt
25 Nm
4 - Bolt/Nut
10 Nm
5 - to the Heater Core, Bottom Connection
6 - Guide Tube
7 - Engine Pre-Heater
8 - Bolt
25 Nm
9 - O-ring
Always replace
10 - Circlip
11 - Front Coolant Pipe
12 - Connecting Hose
212
VW Passat Quick Reference Specification Book
•
February 2014
VW Passat Quick Reference Specification Book
Engine –
2.5L CBTA/CBUA
13 - Cover
14 - to the Radiator, Lower Connection
15 - Bolt
5 Nm
16 - O-ring
Always replace
17 - Coolant Thermostat
18 - Seal
Always replace
19 - Bolt
25 Nm
20 - Coolant Thermostat Housing
21 - Seal
Always replace
22 - Accessory Bracket
23 - O-ring
Always replace
24 - Bolt
9 Nm
25 - Coolant Hose
26 - Bolt
25 Nm
27 - Coolant Pump
•
February 2014
213
Coolant Pump and Thermostat Overview
Part 2, Transmission Side
1 - Coolant Pipe Connection
2 - Lock Ring
3 - Seal
4 - to the Expansion Tank, Top Connection
5 - Rear Coolant Pipe
- 3X Stronger than the leading full synthetic*
- 10X Better high stress performance**
- 20,000 miles between oil changes***
- Viscosity breakdown as measured in Kurt Orbahn test on 5W...
- As measured in Seq IX test under high load/torque conditions...
- Phosphorus Replacement Technology to help extend the life of...
- Reduces leaks, oil burnoff and power robbing deposits
- 15,000 miles between oil changes*
- Meets or exceeds the following specifications: API SP/SN...
- Or one year, whichever comes first
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TSB/Document ID: QRG - 2014 Passa
Replacement Service Bulletin Number:
MFR Communication Date: 2014-02-18
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT ADAPTIVE/MOBILITY
MFR Component System:
MFR Component Subsystem:
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