Description

Mercedes-benz 374, 375, 930, 931, 932 2007 Technical Manual

If you have ever trusted an aftermarket manual to give you the right torque for a brake caliper bracket on a Mercedes-benz 930 and ended up with a stripped thread or a leak that took half a day to find, you already know why this factory document exists. The Mercedes-benz 374, 375, 930, 931, 932 2007 Technical Manual is a 97-page OEM release that covers exactly what the brake system changed and what stayed the same across these medium-duty truck models. No generic guesswork. No reprinted third-party text. Just the 2007 factory data from Daimler AG.

Brake System Modifications: What the 2007 Factory Manual Covers

This technical manual focuses on brake system modifications and new features. The title page makes it clear: it is not a general service manual. It targets the changes made to the braking architecture for the 374, 375, and 930 through 976 series. Page 1 states “Brake System Modifications and New Features” and lists the affected models. If you are working on a 931 or 932 with ABS or air brake updates that appeared around 2007, this is the document that tells you which components were revised and what the factory intended for torque values and bleeding procedures. The manual does not waste space on information that did not change; it only documents what matters for that specific update period.

Model Specifics: 374, 375, 930, 931, and 932 Trucks

Your job depends on knowing which model variant you have. The manual covers the 374 and 375 platforms plus the 930, 931, and 932. It also extends to 933–934, 940–944, 950–954, and 970–976, but the core group you are likely to see in a San Antonio shop is the 374/375 and the 930–932 series. Brake calipers, rotors, pneumatic valves, and control unit programming differ between these models. The manual lays out each system with part numbers and cross-references. If you touch a brake line on a 2007 930 without this manual, you are working blind. That is a liability I will not take in my bay.

OEM Torque Specs and Fluid Capacities – Why Guessing Costs You

Aftermarket manuals often list torque values that are close but not exact. On a brake system that can generate 1500 psi or more at the accumulator, “close” means a leak or a snapped bolt. This manual uses the factory torque specifications verified by Mercedes-benz engineers. The 97 pages include torque tables for banjo bolts, caliper mounting brackets, air dryer connections, and reservoir fittings. The manual also specifies brake fluid type and capacity for each reservoir variant. You will not find a generic “use DOT 4” here; it identifies the exact Daimler AG part number for the fluid and the fill procedure with the diagnostic tool. That level of detail saves you the rework that comes from assuming.

System Descriptions and Function Descriptions – Beyond Simple Diagrams

Page 3 of the manual lists the ordering information for “Introduction into Service Manuals, System Descriptions, Function Descriptions, Technology Guides, Technical Data Manuals.” Those are official document types, not marketing fluff. The manual includes system descriptions that explain how the brake pressure modulator interacts with the engine control unit on the 930 series. It also has function descriptions that walk you through the diagnostic steps without skipping the safety warnings. For example, the manual covers the bleed procedure for the four-channel ABS unit on the 932; it tells you which valve must be open and which diagnostic tool codes to expect. If you follow the function description, you will not have to guess why the ABS light stays on after a pad change.

Why a 2007 Technical Manual Still Matters for Your Truck

Some shop managers think a 2007 manual is too old to be useful. They are wrong. The 374, 375, 930, 931, and 932 chassis from that production year still run municipal fleets, delivery routes, and construction yards around North America. The brake systems on these trucks have not been replaced entirely; they use the same Bosch ABS generation and Wabco air components that Mercedes-benz certified in 2007. Aftermarket drum brake kits may fit, but the torque sequence for the wheel cylinder bolts and the slack adjuster preload have not changed. This manual is the only reliable reference for that information outside of the dealer network.

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If you need a reference on conventional gearboxes, the Manual Transmission”>Manual Transmission section of Wikipedia can clarify basic principles, but it cannot replace the factory shift-point data. For Mercedes-benz specific transmission specs, treat the Manual Transmission”>Manual Transmission external resource as background only. The real data lives in the OEM manuals.

Frequently Asked Questions

Does this manual cover parking brake adjustments?

Yes, the manual includes parking brake adjustment specs for the 374 and 930 series drum-in-hat systems.

Will this manual work for a 2008 model?

The 2007 manual documents the brake system as of July 2007. The base brake hardware carried over into 2008 on most 374 and 930 chassis. For any model-year-specific changes after 2007, you would need the 2008 supplement. This manual covers the common parts.

Are wiring diagrams included?

The manual is a technical description and modification guide, not a full wiring diagram book. It does include circuit schematics for the ABS/ASR control unit connections directly related to brake system modifications. For a complete chassis wiring harness, you would need the separate Electrical Troubleshooting Manual.

What page has the torque for the caliper guide pins?

The manual lists torque values in several tables; there is no single page dedicated to caliper pins because the spec depends on the model variant. Use the model index at the beginning to find your specific sub-section.

You have read the details. You know what happens when you rely on a copied forum post for a brake job on a 931. Get the real documentation that matches the truck in your bay. Access the Factory Manual now and keep your torque wrench calibrated to OEM specs.