SL Roadster family from Mercedes-Benz has got a heart transplant. The SL 400 comes
with a six-cylinder biturbo drive system, according to a company statement.
Despite half a litre less displacement the output has risen by 27 hp. There is
also 110Nm more torque at its disposal. The price of the SL 400 starts from
97,282.50 euros (for the German market incl. 19pc VAT). This translates to around Rs 80.28 lakh
virtually completely from aluminium, the roadster also sets the standards in
the category of luxurious roadsters with its numerous technical innovations.
Not forgetting that the SL is entirely suitable for everyday use thanks to its
contrast to its predecessor, the SL 400 is not fitted with a naturally
aspirated engine. Instead it boasts a six-cylinder unit with two turbochargers.
Although its displacement has been reduced to three litres, the biturbo drive
system develops a high full-load output potential with a charge pressure of 1.8
bar, and facilitates an extremely high torque of 480 Nm at low engine speeds.
The efficient six-cylinder meets the EU6 emissions standard.
all BlueDIRECT petrol engines the biturbo engine in the new SL 400 also works
with a direct injection system with spray-guided combustion, which
Mercedes-Benz was the first car manufacturer to offer in series production. The
system pressure is up to 200 bar, the pressure being variably optimised
according to the engine's mapping. Piezo injectors enable optimal mixture
formation with up to five injections per power stroke. The third-generation
direct injection is supplemented by rapid multi-spark ignition, MSI.
rapid multi-spark ignition can be controlled to vary both the timing of the
sparks and the combustion period to suit the relevant operating point. This
provides scope for optimising the centre of combustion and improved residual
gas compatibility. The result of this is excellent utilisation of the fuel with
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