BMW 5 Series: Introduction

The product information "B58 Engine" serves as the basis for this document. This document exclusively describes the changes to the B58 engine and serves to support Technical Service.

Due to the huge similarities, the two engines are described in the one document.

Innovations

To meet the legal requirements for emissions, a number of technical improvements have been implemented. The technical updates for the B58TU engine include the following new features:

New features on the B58TU engine

1. Fuel preparation with 350 bar injection pressure
2. Cylinder head with integrated exhaust manifold
3. Adapted exhaust turbocharger made from steel
4. Split cooling
5. Coolant pump with integrated pressure relief valve
6. Heat management module with electric split cooling valve
7. Single-part chain drive

Weight savings in the crankshaft drive area, injection pressure boosting in the fuel preparation area, and function changes in the engine cooling area have made it possible to reduce the CO2 emissions by 2.5%, while increasing engine performance by 10 kW/50 Nm. (13 hp/36 lb-ft)

Technical data

The following engine versions are described in this product information:

Performance diagrams

Comparison of performance curves between B58B30M1 and B58B30M0 engine

Model overview

The following table provides an overview of the models in which the new B58TU engine is used from 07/2018:

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