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The brake linings
The catalytic converter
The exhaust system
The transmission
Explanation: By using a retarder, the life of the brake linings is extended. This is because a retarder works by slowing the vehicle without using the wheel-mounted brakes.
Category: Braking Systems
References: The Official DVSA Guide to Driving Buses and Coaches: Section 2, The Official DVSA Guide to Driving Goods Vehicles: Section 2
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