Door mirror glass (Aspherical), Dimmable, Left for LHD. Porsche 971 Panamera / 976 Panamera  ❭  971857521D

Door mirror glass Aspherical, Automatically dimmable, Left for LHD (Left-Hand Drive) cars
This Genuine Porsche left door mirror glass is an OE aspherical, dimmable mirror glass for left-hand-drive Porsche 9YA Cayenne and 95C Macan-e models with lane change assist. It restores clear side and rearward visibility, supports factory auto-dimming, heating and lane change assist functions where fitted, and provides the correct Porsche fit and finish for the left exterior mirror assembly.

Fits:
for cars with option code: 7Y1 - Lane change assist
Porsche 9YA Cayenne 2018 - 2024
Porsche 9YA.2 Cayenne 2023>>
Porsche 95C Macan-E 2024>>

LEFT Door Mirror Glass ASPHERICAL: OE Part No 9Y1857521Q
   L0L / 5SL / 6XT / 6XW

CODES:
   PR:L0L = Left-hand drive version
   PR:5SL = Door mirror, Left, ASPHERICAL
   PR:6XT = Door mirror, automatically dimmable, electrically retractable/adjustable, separately heated + memory
   PR:6XW =  Door mirror, automatically dimmable, electrically retractable/adjustable, separately heated


The aspherical glass design provides a wider field of view than standard flat mirror glass, helping improve visibility along the driver side of the vehicle.

Functions
•  Restores the left-hand exterior mirror glass
•  Provides a wider side and rearward field of view through aspherical glass
•  Helps reduce blind-spot areas when correctly adjusted
•  Supports the factory lane change assist / side assist display where fitted
•  Supports the factory dimming / auto-dimming mirror function where fitted
•  Helps reduce glare from following traffic at night
•  Supports mirror heating where the vehicle is equipped with heated mirror glass
•  Fits into the factory Porsche exterior mirror housing
•  Maintains original Porsche mirror appearance and functionality
•  Replaces cracked, scratched, cloudy, stained or failed mirror glass
•  Provides OE Porsche fit, finish and quality.

Why Replace This Part?
Door mirror glass can become cracked, scratched, cloudy or damaged from impact, road debris, weather exposure or cleaning wear. Dimmable mirror glass can also fail internally, causing dark patches, stains, liquid marks or reduced visibility. If the mirror glass includes lane change assist functionality, damage or incorrect replacement glass may also affect the visibility of the side assist warning indicator. Replacing the glass with a Genuine Porsche OE aspherical dimmable mirror glass helps restore the correct field of view, factory appearance and original mirror functions, including lane change assist compatibility where fitted.

When to Replace This Part
•   If the left mirror glass is cracked or broken
•   If the glass is scratched, cloudy or discoloured
•   If the auto-dimming function has failed
•   If the mirror has dark patches, staining or liquid marks
•   If the lane change assist indicator area is damaged or no longer visible
•   If mirror heating is no longer functioning due to glass failure
•   If visibility through the mirror is poor
•   After impact damage to the exterior mirror
•   During mirror housing repair or replacement
•   When restoring the car with correct Porsche OE parts.

Where It Fits on the Car
This mirror glass fits in the left-hand exterior door mirror assembly. For left-hand-drive vehicles, this is normally the driver-side mirror. It installs into the mirror carrier inside the door mirror housing and connects to the relevant heating, dimming and lane change assist connections where fitted.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9Y1857521Q

The product you are viewing cross references to these numbers

Door mirror glass Aspherical, Automatically dimmable, Left for LHD (Left-Hand Drive) cars
This OE Match left door mirror glass is a replacement aspherical exterior mirror glass for left-hand drive Porsche 9YA Cayenne and 95C Macan-e models. It is designed for vehicles with dimmable mirror glass and lane change assist specification, matching the original-style fitment, visibility, and safety function.

Fits:
for cars with option code: 7Y0 - No lane change assist
Porsche 9YA Cayenne 2018 - 2024
Porsche 9YA.2 Cayenne 2023>>
Porsche 95C Macan-E 2024>>

LEFT Door Mirror Glass ASPHERICAL: OE reference Part No 9Y1857521N
   L0L / 5SL / 6XT / 6XW

CODES:
   PR:L0L = Left-hand drive version
   PR:5SL = Door mirror, Left, ASPHERICAL
   PR:6XT = Door mirror, automatically dimmable, electrically retractable/adjustable, separately heated + memory
   PR:6XW =  Door mirror, automatically dimmable, electrically retractable/adjustable, separately heated


The aspherical mirror glass provides a wider rear-side field of view from the left exterior mirror, helping reduce blind spots and improve side visibility. The dimmable function helps reduce glare from headlights behind the vehicle, while the lane change assist compatibility supports the vehicle’s side monitoring system where fitted.

Functions
• Replaces the left-side exterior door mirror glass
• Provides aspherical wide-angle side visibility
• Helps reduce blind spots on the left side of the vehicle
• Supports dimming function to reduce glare during night driving
• Compatible with lane change assist mirror specification
• Fits into the original Porsche door mirror housing
• OE Match replacement for damaged or failed original mirror glass.

Why Replace This Part?
Door mirror glass can become cracked, chipped, scratched, cloudy, loose, or delaminated over time. Dimmable mirror glass can also fail internally, causing dark patches, stains, liquid marks, or loss of dimming performance. If the mirror glass is damaged or the lane change assist display area is affected, visibility and driver assistance function may be reduced. Replacing the mirror glass restores clear side visibility, OE-style appearance, and correct mirror equipment compatibility.

When to Replace This Part
•  The mirror glass is cracked, broken, scratched, or missing
•  The dimming function no longer works correctly
•  The lane change assist display area is damaged or unclear
•  The mirror surface has dark patches, stains, or internal fluid marks
•  Visibility from the left mirror is poor or distorted
•  The glass has become loose or detached from the backing plate
•  The door mirror has been damaged by accident or parking impact
•  The vehicle is being repaired to original mirror specification.

Where it fits on the car
This mirror glass fits in the left-hand exterior door mirror assembly on left-hand drive Porsche 9YA Cayenne and 95C Macan-e models. It mounts into the original mirror housing and connects to the mirror electrical system where dimming and lane change assist equipment is fitted.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9Y1857521N

The product you are viewing cross references to these numbers

Door mirror glass Convex, Automatically dimmable, Right for LHD (Left-Hand Drive) cars
Genuine Porsche OE right-hand door mirror glass, convex and dimmable, for left-hand-drive Porsche 9YA Cayenne and 95C Macan Electric models without lane change assist. This original Porsche replacement mirror glass is designed for the right exterior door mirror and helps restore clear rearward visibility, factory mirror function and correct OE fitment.

Fits:
for cars WITHOUT Lane change assist (option code: 7Y0)
Porsche 9YA Cayenne 2018 - 2024
Porsche 9YA.2 Cayenne 2023>>
Porsche 95C Macan-E 2024>>

RIGHT Door Mirror Glass CONVEX: OE Part No 9Y1857522T
   L0L / 5RQ / 6XT / 6XW

CODES:
   PR:L0L = Left-hand drive version
   PR:5RQ = Door mirror, Right, CONVEX
   PR:6XT = Door mirror, automatically dimmable, electrically retractable/adjustable, separately heated + memory
   PR:6XW =  Door mirror, automatically dimmable, electrically retractable/adjustable, separately heated


The convex mirror glass design gives a wider field of view than flat mirror glass, helping improve visibility on the passenger side of the vehicle.

Functions
• Restores the right-hand exterior mirror glass
• Provides a wider side and rearward field of view through convex glass
• Helps improve visibility when changing lanes, parking or manoeuvring
•  Supports the factory dimming / auto-dimming mirror function where fitted
•  Helps reduce glare from following traffic at night
•  Supports mirror heating where the vehicle is equipped with heated mirror glass
•  Fits into the factory Porsche exterior mirror housing
•  Maintains original Porsche mirror appearance and functionality
•  Replaces cracked, scratched, cloudy, stained or failed mirror glass

•Provides OE Porsche fit, finish and quality.

Why Replace This Part?
Door mirror glass can become cracked, scratched, cloudy or damaged from road debris, impact, weather exposure or cleaning wear. Dimmable mirror glass can also fail internally, causing dark patches, staining, liquid marks or reduced visibility. Replacing the glass with a Genuine Porsche OE convex dimmable mirror glass restores the correct field of view, factory appearance and original mirror function. It is important to use the correct version for cars without Lane Change Assist, as mirror glass variants differ depending on vehicle option equipment.

When to Replace This Part
•   If the right mirror glass is cracked or broken
•   If the glass is scratched, cloudy or discoloured
•   If the auto-dimming function has failed
•   If the mirror has dark patches, staining or liquid marks
•   If mirror heating is no longer functioning due to glass failure
•   If visibility through the mirror is poor
•   After impact damage to the exterior mirror
•   During mirror housing repair or replacement
•   When replacing incorrect mirror glass fitted to a car without Lane Change Assist
•   When restoring the car with correct Porsche OE parts.

Where It Fits on the Car
This mirror glass fits in the right-hand exterior door mirror assembly. For left-hand-drive vehicles, this is normally the passenger-side mirror. It installs into the mirror carrier inside the door mirror housing and connects to the relevant heating and dimming terminals where fitted.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9Y1857522T

The product you are viewing cross references to these numbers