part
corroboratedVIN/adapter-matched front wiper-blade pair
The new pair must match the E91 arm adapter and preserve the correct driver/passenger lengths.
COMPLETE GUIDE · WORKSHOP RELEASED
E91 front wiper-blade replacement
BMW 3 Series Touring · E91 LCI · 320i · N43B20 · Any
A complete novice journey for putting the E91 wipers in service position, replacing both front blades without striking the glass, and validating sweep and clearance.
5/5 steps released · 2 linked sources · about 25 minutes when released.
WHAT YOU WILL LEARNnovice path
- Understand why both front blades should be replaced as a pair.
- Use the E91 service position instead of forcing a parked wiper arm.
- Protect the windscreen from the spring-loaded bare arm.
- Check adapter engagement, rubber contact and sweep clearance before driving.
FASTENER PLAN
Know what must be replaced before you start
WrenchGuide tracks fastener material, reuse policy and tightening specification separately. A torque-plus-angle instruction does not automatically mean a fastener is torque-to-yield or single-use; the replacement rule must be verified independently.
0mapped fasteners
No verified fastener map is published for this procedure yet.
WrenchGuide will not guess whether a bolt is aluminium, reusable, torque-to-yield or replace-after-removal, and it will not invent a torque value. Exact vehicle, engine, transmission and drivetrain applicability can change the answer.
Replacement rule and tightening method are different facts.WrenchGuide only labels a fastener replace-after-removal, aluminium or torque-to-yield when the applicable evidence supports that exact statement. Torque + angle is shown as a tightening method, not used as proof of torque-to-yield by itself.
BEFORE YOU START
Parts, tools & supplies
WrenchGuide builds this list from the repair itself. Mandatory items only become hard requirements after their need has verified provenance.
100%Verified requirements still being assembled
Required before start2
tool
corroboratedThick folded towel for windscreen protection
A bare spring-loaded arm can crack or chip the glass if it falls.
Fitment and approval are separate checks.An OEM/reference number narrows a part search and an oil viscosity narrows a fluid search, but neither replaces the verified vehicle fitment or manufacturer approval. Production date, VIN, engine/transmission, installed hardware and current product data can still matter.
Confirm the pair before touching the car
+
No visual needed for this step
Follow the written checks and use the linked sources when you need more context.
Stop and get help if
- The application, adapter or side lengths are ambiguous.
DO THIS~5 min
- Confirm the package explicitly lists BMW E91 compatibility for the active vehicle and includes both front blades.
- Lay the new blades beside the installed driver and passenger blades and compare length, curvature and adapter shape without opening an adapter that may need to be returned.
- Stop if the adapters or left/right lengths do not match; do not improvise an adapter under tension.
- A chassis match narrows fitment, but the installed arm adapter and unequal side lengths remain the final physical checks.
- Two correctly identified replacement blades are assigned to the same sides as the installed pair.
IF SOMETHING GOES WRONGRecovery path
- Photograph the installed adapter and blade labels, refit or leave the original blades installed, and resolve fitment with the supplier.
Thick folded towel for windscreen protectionother · Place it beneath the raised arm before removing a blade.
VIN/adapter-matched front wiper-blade pair × 1replace with new · Driver and passenger blades can differ. Confirm the E91 application and compare both adapters and lengths before removing the old pair.
SOURCES & PROVENANCE1 linked
How to change front windshield wipers on BMW 3 Touring (E91)
AUTODOC CLUB · E91 guide · service position · paired replacement · glass-impact warning · final sweep check · accessed 2026-08-13
Progress saved locally on this device.
MY WORKSHOP JOURNAL
Remember how your car came apart.
Attach private notes and your own teardown photos to the exact procedure step. They stay on this device in the current local-first beta.
NOTESAuto-saved locally
Confirm the pair before touching the car
MY PHOTOS0 / 6
Image only · up to 12 MB each
No personal photos for this step yet.
Take a quick photo before disconnecting or removing something you may need to identify during reassembly.