Mercedes Benz Vito W447 Left Mirror Frame A4478101500 9051 NEW ORIGINAL

Part number A4478101500. We take parts off vehicles every week, and this page is updated with a link straight to the part as soon as another one arrives.

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About part number A4478101500

A door mirror frame forms the internal structural housing for a door mirror assembly on the side of a vehicle. It secures the mirror glass, the adjustment motor, and the outer cover casing, holding these components firmly against the body of the door. When the unit is working correctly, the mirror remains steady while driving and allows clear rearward vision without excessive vibration.

To confirm that this item is correct for your vehicle, you must check that your original part number matches A4478101500. Manufacturer part numbers are typically stamped or moulded directly into the plastic or metal casing on the inside of the frame, visible once the outer mirror assembly is dismantled. Matching the exact part number is the only way to guarantee correct fitment.

Mirror frames are usually replaced after sustaining impact damage from tight spaces or road debris, which can crack the housing or snap the mounting points. When fitting a replacement frame, you often need to transfer or replace the mirror glass, the outer painted cover, and the internal adjustment motor.

  • Part type: Other Exterior Parts & Accessories.

About this kind of part: door mirrors

A door mirror is an assembly rather than a single part: a painted cover, a base that bolts to the door, the glass on a motorised carrier, and depending on how the car was specified a heater element, a folding motor, an indicator, a puddle lamp, a blind-spot sensor and a camera. The number of wires in the connector is the quickest guide to how much is inside one, and it is the main reason two mirrors that look identical are not interchangeable.

Why people replace one

  • The mirror has been struck in a narrow gap or a car park and the cover, the glass or the base is broken.
  • The folding mechanism has stripped, so the mirror no longer powers in or sits at the correct angle once folded.
  • The glass adjustment has failed, usually a stripped drive in the carrier behind the glass.
  • The indicator or the puddle lamp has stopped working and is sealed into the assembly.
  • The painted cover has been scuffed along its outer face, which is the first thing to touch a wall or a post.

Fitting it

  • Most mirrors come off from inside the door, behind the trim panel or a small triangular cover, held by three bolts.
  • The connector is released inside the door rather than by pulling the loom through the door skin.
  • A mirror with folding, heating, a camera or a blind-spot sensor may need coding to the car so that it operates and reports correctly.
  • The cover and the glass are usually available separately, so a scuffed cover does not always mean replacing the whole assembly.

Making sure it is the right one

  • Count the pins in the connector and compare them with your own mirror. This is the single most useful check, because every extra feature adds wires.
  • Match the part number. Mirrors are handed, and within one model there are usually several versions by specification.
  • Check which features yours has before buying: folding, heating, an indicator, a puddle lamp, a blind-spot indicator in the glass, or a camera in the underside.
  • A painted cover is matched by paint code from the car's own identification plate, and a used cover has aged with the car it came off.

What to look for in the photographs

A Part number — On a label on the base or moulded into the housing behind the cover.
B Connector — Count the pins. A mirror with folding, heating, a lamp, a sensor and a camera has many more wires than a plain one, and the plug will not match.
C Glass and carrier — Whether the glass is present, whether it carries a blind-spot indicator, and whether the carrier behind it is intact.
D Camera aperture — An opening in the underside of the housing, where the car has a surround-view camera. Its presence or absence is part of the match.
E Base and mounting face — The three bolt holes and the sealing face against the door. Check for cracks radiating from a bolt hole.
F Cover outer face — Look along the outer edge of the cover rather than straight at it, which is where scuffing from a wall collects.

This section describes door mirrors parts in general. The numbers and the photographs above are this part.

Free next-day delivery in the United Kingdom Sent with DPD on a tracked, next-day service. Most mainland addresses are next day; the Highlands and Islands, Northern Ireland, the Channel Islands and the Isle of Man can take a day longer.

Returns Thirty days to change your mind, and we pay the return postage in the United Kingdom and Germany.

Trade and VAT C.E.J Haime Group Limited is VAT registered in England and Wales, and every order comes with a full VAT invoice.

Not sure it is the right part? Send us your registration or VIN and we will check this part number against your own vehicle before you buy.

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