Documented application
Troubleshooting
BMW battery keeps discharging: preserve the evidence
What to record before replacing a discharged 12 V battery, and why energy diagnosis matters before registration or programming.
← All guides
PHTM JOURNAL / GUIDES / BMW
E90 / E91 / E92 / E93.
BMW 3 Series · 8 guides
Sedan, Touring, Coupe and Convertible share this library, while each guide keeps its own engine and model limits. The first reference covers the documented N51/N52 eccentric-shaft sensor fault path.
Browse guides
8 guides · Page 1 of 1
No vehicle fitment is inferred from a keyword mention.
Documented application
How-To
Check tire pressure without using the wrong number
Find the correct cold-pressure reference, check each axle and understand why a quiet TPMS light is not a pressure measurement.
Documented application
Troubleshooting
E9X 2A37 / 2A47 faults: check the diagnostic path
What BMW’s eccentric-shaft sensor bulletin covers, and why fault codes alone do not prove which parts need replacement.
Documented application
Install
N54 cold-air intake: bumper and duct fitment matters
Why an E82/E9X intake installation needs more than an N54 engine match.
Documented application
Quick Reference
Punctured tire: repair candidate or replacement?
Understand the limits of a puncture repair before relying on an outside plug or judging damage from a photograph.
Documented application
Troubleshooting
Uneven tire wear: what to check before alignment
Compare wear across the tire and separate pressure, alignment and mechanical checks without diagnosing a suspension part from tread alone.
Documented application
Maintenance
Using oil? Build a useful consumption record first
Separate leaks, fill-level errors and oil use before authorizing an engine or turbo repair.
Documented application
Troubleshooting
Whistle, rough idle and oil leaks: check crankcase ventilation
Why a measured crankcase-pressure test is more useful than guessing from oil-cap suction.
No matching guides. Try another topic or clear a filter.
487 guides in the library. Published content only.
THE PEOPLE BEHIND THE PLATFORMS
