Removing and installing the intake system (B48 and B46 engine) (Cooper S and John Cooper Works)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2021 MINI Cooper, 2020 MINI Cooper, 2019 MINI Cooper, 2018 MINI Cooper, and 2017 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Preliminary work needed:

Disconnect cable from BATTERY EARTH LEAD .
Remove INTAKE SILENCER HOUSING .
Remove TANK VENTING VALVE .

Removal:

Unlock connector (1) and detach.

Unclip the wiring harness (2) and release it from the intake system.

Unclip the positive line of the alternator (3) and release it from the intake system.

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Unlock connector (1) and detach.

Unclip the coolant hose (2) from the holder.

Unclip the wiring harness (3) and release it from the intake system.

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Unlock and detach connectors (1) and (2).

Unlock and detach pressure pipe (3) from throttle body.

Put the pressure pipe (3) to one side.

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Slacken screws in the sequence (5 - 1 ).

Pull intake system (6) off cylinder head and remove.

Fig 1: Intake System Screws Loosening Sequence

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Installation:

Replacement:

Remounting the THROTTLE BODY .

Remounting the BOOST PRESSURE SENSOR .

NOTE: Parts: Replace gaskets (1).

NOTE: Align the intake system using the guides (2) on the cylinder head.

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Install the intake system (6).

Tighten screws in the sequence (1 - 5 ).

Tightening torque: 11 61 1AZ .

Fig 2: Intake System Screws Tightening Sequence

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Connect connectors (1) and (2) and lock.

Make sure the connectors engage audibly.

Connect pressure pipe (3) to throttle body.

Make sure the pressure pipe (3) engages audibly.

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Connect and lock the connector (1).

Make sure the connector engages audibly.

Clip coolant hose (2) in holder.

Clip wiring harness (3) to intake system.

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Connect and lock the connector (1).

Make sure the connector engages audibly.

Clip wiring harness (2) to intake system.

Clip positive line of alternator (3) to intake system.

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Required follow-up work: