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How to Replace the Battery in a Mercedes Viano 3.0 Key?

1 Answers

JoshuaMarie

07/30/25 4:46am

To replace the battery in a Mercedes Viano 3.0 key, follow these steps: First, push the marked switch upward to remove the mechanical key, then open the key casing and pry out the old battery before inserting a new one. Before replacing the battery, it is advisable to check the battery model required for the car key, which is usually specified in the vehicle's user manual. Ensure you select a new key battery according to the specified model. The Mercedes Viano 3.0 is an MPV under the Mercedes-Benz brand, featuring a front-engine, rear-wheel-drive layout. It is equipped with a MacPherson strut front suspension and a coil spring independent rear suspension. The steering assistance is provided by a mechanical hydraulic power system. Both the front and rear tires have a specification of 225/55R17.

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