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Instructions for: 

Petrol Engine Twin VANOS

Service Tool Kit -

BMW M52TU, M54 & M56

Model No: VS4895

1. SAFETY INSTRUCTIONS

Thank you for purchasing a Sealey product. Manufactured to a high standard this product will, if used according to these instructions 
and properly maintained, give you years of trouble free performance.

IMPORTANT:

PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS AND CAUTIONS.

USE THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE
AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.

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WARNING!

Ensure Health and Safety, local authority and general 

workshop practice regulations are adhered to when using tools.

"

DO NOT

use tools if damaged.

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Maintain tools in good and clean condition for best and safest performance.

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Ensure that a vehicle which has been jacked up is adequately supported
with axle stands.

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Wear approved eye protection. A full range of personal safety 
equipment is available from your Sealey dealer.

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Wear suitable clothing to avoid snagging. Do not wear jewellery and tie
back long hair.

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Account for all tools, locking bolts, pins and parts being used and do 
not leave them in or near the engine.

!

WARNING!

Incorrect or out of phase camshaft timing can result in contact

between valve head and piston crown causing damage to the engine.

IMPORTANT: 

These instructions are provided as a guide only. Always refer

to the vehicle manufacturer’s service instructions, or a proprietary manual,
to establish the current procedure and data. 

2. INTRODUCTION & APPLICATIONS

2.1 Introduction
In 1998 BMW introduced a Twin Vanos System (Variable Valve Control)
on their 6 cylinder twin camshaft petrol engines. Vanos Adjustment Units
are fitted to both inlet and exhaust camshafts and must be set in relation
to the camshafts when adjusting engine timing or re-assembling the
engine after overhaul/repair work. 

2.2 Applications
BMW M52TU, M54 and M56 Twin Camshaft Petrol engines fitted to:
3 Series: E46 / Z3                   
5 Series: E39 / E60 / E61        
7 Series: E38 / E65 / E66          
X3:

E83

X5:

E53

Z4:

E85

Engine Codes: 20 6S 4, 22 6S 1, 25 6S 4, 25 6S 5, 28 6S 2, 30 6S 3.

2.3 Additional Sealey tool kit required:
VS4425 Engine Setting/Locking Tool Kit will be required to cover the
engine timing setting/locking applications on these engines.

VS4895 - 1 - 210207

ITEM

PART NO.

DESCRIPTION

1

VS4896

Compressed Air Connector

2

VS4897

Twin VANOS Setting Tool

3

VS4898

Sprocket/Chain Assembly Fixture

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VS4895-84

Case and Insert (not shown)

3.  CONTENTS

Contents

VS4895

Summary of Contents for VS4895

Page 1: ...ls locking bolts pins and parts being used and do not leave them in or near the engine WARNING Incorrect or out of phase camshaft timing can result in contact between valve head and piston crown causing damage to the engine IMPORTANT These instructions are provided as a guide only Always refer to the vehicle manufacturer s service instructions or a proprietary manual to establish the current proce...

Page 2: ...e Assembly VS4310 01 VS4310 02 VS4309 04 VS4309 05 from VS4425 kit Fig 4 NOTE The Camshaft Setting Plate Assembly must rest fully on the surface of the cylinder head for engine timing position to be correct Remove all tools and install the timing chain tensioner 4 2 Removing and Replacing the Twin Vanos Adjustment Unit Remove intake filter housing with mass sensor fan assembly fan cowl cylinder he...

Page 3: ...sprocket Remove the gasket and fit the VS4897 Twin Vanos Setting Tool without gasket fitted and ensure Tool is in full contact with the cylinder head Fit and tighten bolts to secure Fig 16 Tighten 3 Screws A on exhaust side to 5Nm Fig 17 Tighten 3 Nuts B on exhaust side to 5Nm Fig 18 Tighten 3 Nuts C on Inlet side to 5Nm Fig 19 Finally tighten 3 Screws A and 6 Nuts B and C to specific torque Remov...

Page 4: ...aces downwards IMPORTANT Do not allow the position of the sprockets to alter in relation to the chain when removing the assembly off VS4898 Fixture When installing the sprocket chain assembly align the tooth spaces in the teeth on the inlet camshaft sprocket Fig 26 Insert Tooth Sleeve on to Inlet camshaft and push in to leave 1mm of spline visible Fig 27 F and FRONT on washers must be visible when...

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