Here are the best write ups and troubleshooting resources.

Please submit links here that you would like added to this resource map.

A master index of E90 DIYs can also be found here

This page is under construction! We are testing out a resource guide based off of RealOEM parts structure.

General Maintenance:

• Bentley Manual - PDF
• Video - 335D Oil Change DIY
• Video - 335D DEF Fluid Fill
• Video - 335D Fuel Filter Change DIY
• Using edibas to prime the system after opening the lines for cbu/filter/etc
• Transmission Fluid Change Procedure Video
• Diagnostic Questions before throwing parts at a car 

Coding, INPA, Rheingold, WinkFP, ISTA

•  DIY - Register new battery 
• V3 Released! - Preloaded VMWare/VBox Image for Diagnostics, Programming, and Coding
• Fuel Pump Activation with EDIABAS
• Sib that covers injector adaptation tests being fixed in updated ddr

Performance Upgrades:

• BMW DDE Installation Guide and Troubleshooting

• 335D DPF delete DIY on the e90 forum
• More info about 335D DPF delete DIY
• Recommended performance parts for your 335D
• X5D ECU Removal Guide
• 335D ECU Removal Guide - Video

Engine Mechanical

• DIY for FMIC Install
• E90 N54 Starter Replacement
• DIY: E90 Oil Pan Gasket and Subframe Drop
• Discussion on M57 Carbon Buildup and walnut blasting
• Video - Swirl Flap Removal DIY

Engine Electrical

• DIY - Register new battery
• Video - Changing glow plug regulator for bmw 335d

Fuel System

• DIY: BMW N54 HPFP Replacement
• Fuel Pump Activation with EDIABAS
• Injector swap and removal info
• Injector Calibration with ISTA - Sib that covers injector adaptation tests being fixed in updated dde

Radiator

Exhaust System

• 335D DPF delete DIY on the e90 forum
• More info about 335D DPF delete DIY 

Suspension related to Engine and Transmission

Automatic Transmission

• Transmission Fluid Change Procedure Video
• Valve Body Removal Video
• Mechatronic Replacement Guide

Gearshift

Axles

Steering

• DIY: e9x with Sport paddles to DCT Paddles 3 in 1 DIY

Brakes

Pedals

Wheels

• Mounting compact spare under E90 trunk floor

Body Work and Vehicle Trim

• DIY Install M3 ducts on 335i
• Video - Rear Bumper Removal for 3 series BMW

Seats

• Interior Refresh DIY

Vehicle Electrical System

• DIY- Rear Power Outlet DIY for US Cars
• DIY: Custom Start button
• Video - Hitch Wiring for towing

Instruments, Gauges, Measuring Systems

Lighting

• DIY - Euro Switch
• DIY Armrest LED

Heating and Air Conditioning

Audio and Navigation Electronic Systems

Distance Systems and Cruise Control

Restraint systems

• DIY: Seatbelt Handover Fix

Common Trouble Codes:

• Fault Code: 004987 - Exhaust gas temperature sensor upstream of the catalyst, signal - Solution: Replace EGT #1 or it may be plugged into the wrong socket

• Fault Code: 43D1 - P2621 - Throttle-valve actuator, activation: Short circuit to

ground - Solution: Check wiring to throttle valve or replace