Mercedes GLA H247 Rear Bumper Left Bracket 2020 TO 2023 A2478851100 Genuine

Part number A2478851100. 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.

OUT OF STOCK

In the meantime you can see every Mercedes-Benz part we have in stock, or you can send us a message and we will tell you the day one comes in.

Notify me when this part is back in stock

Leave your email address and we will write to you the day part number A2478851100 comes in. We use your address for that message only.

About part number A2478851100

A rear bumper bracket forms part of the vehicle bodywork and mounting system. It secures the rear bumper cover to the main structure of the car, keeping the panel aligned with the surrounding bodywork. When this bracket is working correctly, the rear bumper sits flush, stays firmly in place, and does not vibrate or sag while driving.

To ensure this is the correct part, match part number A2478851100 directly with the number stamped on your original component. Manufacturer part numbers are usually molded or stamped directly into the plastic or metal body of the bracket. Matching this part number is what determines whether the bracket will fit your vehicle.

These brackets are typically replaced after a rear impact, or when the plastic mounts snap during bumper removal. When fitting a replacement bracket, you often need the original fixing screws, plastic clips, or rivets that hold the bumper section in place.

About this kind of part: brackets and mountings

A bracket is the moulded or pressed part that holds a panel, a lamp or a bumper to the body of the car. It is hidden once everything is assembled, and it is designed to break: the bracket is cheap and the panel it carries is not, so in a light knock the bracket gives way first and takes the energy. That is why a car with no visible damage often still needs them, and why they are replaced far more often than the parts they hold.

Why people replace one

  • A low-speed knock has snapped the bracket while leaving the panel it holds undamaged.
  • A panel sits proud, droops at one end, or has a gap that will not close, because the bracket behind it has cracked.
  • A rattle or a creak over bumps, where a broken bracket is letting a panel move against the body.
  • The bracket was broken during a previous repair, taking a bumper or a lamp off, and never replaced.
  • A lamp or a panel has been held on with tape, glue or a repair plate and the proper part is wanted.

Fitting it

  • Most brackets are reached only with the panel they carry removed, so the job is usually done at the same time as the panel comes off anyway.
  • They are held by screws, plastic nuts or clips into the body, and the fasteners are often broken on removal and worth having to hand.
  • A bracket sets the position of the panel in front of it, so the panel gaps are worth checking before everything is tightened down.
  • Where a bracket has snapped, look at the body mount behind it as well. The same knock often distorts the metal the bracket screws to.

Making sure it is the right one

  • Match the part number. Brackets are handed, and the two sides of a car take different numbers even where they look like mirror images.
  • A bracket is specific to the panel it carries and to the trim level, so one from a different version of the same model may locate in the body and still hold the panel in the wrong place.
  • Count the fixing points and compare their spacing with the broken part in front of you. This is the quickest check there is.
  • A repair plate is not the same part. If the original has snapped, the proper bracket restores the panel position; a plate holds it wherever it happens to sit.

What to look for in the photographs

A Part number — Moulded or stamped into the body of the bracket. This is the number to match, because handed parts look alike.
B Fixing points — The holes, slots and studs that screw to the body. Count them and compare the spacing with your own part.
C Locating pegs — The pins or tabs that set the panel's position. A sheared peg means the panel will sit wrong even though the bracket bolts up.
D Stress points — The narrow sections and the moulded ribs, where a bracket fails. Look at these rather than at the broad faces.
E Handing — Which way the arms and tabs face. Hold the photograph against your own part rather than judging by the overall shape.

This section describes brackets and mountings 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.

Ask us about this part

Other part numbers on this site

See every Mercedes-Benz part number we list · All part numbers · Everything in stock now