The ultimate diesel: the V6 engine in the CLS 350 CDI

195 kW (265 hp) and 620 Nm of torque: the excellent diesel engine in the CLS 350 CDI BlueEFFICIENCY is now even more powerful and boasts a correspondingly superior performance. The Coupé accelerates to 100 km/h in 6.2 seconds, and has a top speed of 250 km/h. And despite the increase in output of 30 kW and the additional tractive power of 80 Nm, the V6 consumes a fifth less fuel than previously, at 6.0 litres per 100 km.

To achieve this, the Mercedes engineers have basically revised the engine. It now has improved engine management in the form of new-generation control units and new software, new sensors and actuators, and more efficient aftertreatment in the maintenance-free diesel particulate filter system with reduced back-pressure. In addition to more effective cooling of recirculated exhaust gas using a variable bypass valve, the in-engine measures include a reduction of the compression ratio from 17.7:1 to 15.5:1, an optimised VNT turbocharger with low-friction shaft bearings for greater agility and high output, new injection nozzles and revised ducting in the intake tract. A whole package of measures has resulted in substantial fuel savings: these include generally lower in-engine friction (through precision honing of the cylinder walls, amongst other measures), more efficient thermal management, an improved compound oil pump and modified cylinder head cooling. With an engine idling speed of 520 rpm, a new optimum value has also been achieved.

    See also:

    EASY-PACK load-securing kit (Wagon)
    Components and storage The EASY-PACK load-securing kit allows you to use your cargo compartment for a variety of purposes. The accessory parts are located under the cargo compartment floor. •& ...

    Ashtray in the front-compartment center console
    You can remove the ashtray insert and use the resulting compartment for stowage. The stowage space under the ashtray is not heat resistant. Before placing lit cigarettes in the ashtray, make ...

    Installing/removing the combined cargo cover and net
    You can reach the combined cargo cover and net to install and remove it from the cargo compartment and, with the seat backrest folded forwards, from the left-hand rear door. •► Make sure ...