Hartge Can Take Your 435d xDrive Up to 362 HP

BMW 4 Series by Hartge 1 photo
Photo: Hartge
The new diesel engines from BMW are a marvel of technology. If no more than 2 decades ago, the world was still reluctant to adopt the noisier type of combustion, today most of the world is embracing it and welcoming it more and more.
It’s not just that diesels are more economic but the torque figures are also considerably higher than on the petrol counterparts, even with turbocharging. In this regard, BMW knows a thing or two.

At the moment, the Bavarians hold the world record for highest output of a 3-liter diesel engine, with their N57S unit that uses 3 turbochargers to make 381 HP and 740 Nm (550 lb-ft) of torque. That’s a monstrous powerplant that we had the chance to experience on the new X5 M50d SAV.

Unfortunately, that engine is available only on certain models, all of them part of the M Performance Automobile range and access to it is rather limited. Apart from the aforementioned X5, you can also get it on the X6 and the M550d xDrive 5 Series model. That’s it.

However, there’s another alternative available that has numbers close to what the record holder puts out. We’re talking about another 3-liter diesel powerplant, this time using only 2 turbochargers.

It’s the N57D30T1 engine that makes 313 HP and 630 Nm (460 lb-ft) of torque between 1500 and 2500 RPM. We had the chance to experience this unit too under the bonnet of a 535d xDrive model and it felt a lot more brutal than the N57S one, despite being less powerful.

That’s because the torque and HP diagram shows a much more steep incline toward the top figures and they are available at a much lower RPM.

The 313 HP version though, on the 3 Series and 4 Series models instantly became the fastest model in the range. For example, the 435d xDrive model does the 100 km/h (62 mph) sprint in 4.7 seconds while the petrol alternative, the 435i xDrive does the same sprint 0.2 seconds faster.

Things can get even better over at Hartge, as you’re about to see. That’s because they can take the 435d up to 362 HP and 730 Nm (538 lb-ft) of torque and, consequently, a lot faster, 4 seconds faster from 80 to 200 km/h (50-124 mph).

Of course, this added performance also comes with a price. The Hartge piggyback upgrade for this engine costs €2,600 ($3,560) and the guys are shipping worldwide.
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