More power and, more importantly, more torque for more driving fun and better fuel economy: BRABUS also offers engine tuning for the GLK-Class, backed by the exemplary BRABUS Tuning Warranty of three years, up to 100,000 kilometers or 62,000 miles (see BRABUS warranty conditions as of November 2006).

For the top-of-the-line turbo diesel model GLK 320 CDI 4MATIC BRABUS offers its ECO PowerXtra D6 (III) tuning that delivers an additional 48 hp (47 bhp) / 35.3 kW and a peak torque of 590 Nm (435 lb-ft). It turns the SUV into one of the sportiest diesel models in its class. The sprint from rest to 100 km/h (62 mph) takes just 6.9 seconds, top speed is 228 km/h (142 mph). Naturally BRABUS power tuning meets the same stringent EURO IV emission limits as the production engine.

The gasoline-powered V6 model GLK 350 4MATIC equipped with BRABUS B7 power kit gains 15 hp (DIN and bhp) / 11 kW for a new rated power output of 287 hp (283 bhp) / 211.2 kW. For even more power BRABUS has developed its BRABUS 4.0 displacement engine, also available for the GLK 280 4MATIC. 332 hp (327 bhp) / 244 kW and a peak torque of 420 Nm (310 lb-ft) at 4,200 rpm provide plenty of added driving fun and excellent performance: A sprint time of just 6.1 seconds for 0-100 km/h (62 mph) and a new top speed of 250 km/h (155 mph) speak volumes.

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