2020 Mercedes A Class W177 Lower Front Bumper Grill Genuine A1778859200

Part number A1778859200. 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 A1778859200

A front bumper grille is a exterior body panel component that clips or screws into the lower section of the front bumper. It allows airflow into the engine bay and radiator to help cool the engine, while protecting internal components from road debris, stones, and litter. When it is intact and correctly fitted, it keeps the front end of the vehicle neat, secure, and properly ventilated.

To ensure this is the correct component, you must match the part number A1778859200 exactly with the number stamped onto your original part. On plastic trim parts like this, the manufacturer part number is usually moulded into the inner or rear surface of the plastic. Matching this specific number is the only way to guarantee it will fit your vehicle correctly.

This type of trim is usually replaced after low-speed parking impacts, road debris damage, or when the plastic mounting tabs snap off. When replacing this component, you may also need replacement plastic trim clips, screws, or surrounding bumper inserts if the original fastenings were damaged during impact or removal.

About this kind of part: grilles

A grille is the moulded panel across the front of a car that lets air through to the radiator and carries the maker's badge. On a modern car it is rarely one piece: there is usually an upper grille set into the bonnet line, a lower grille in the bumper cover, and separate side inserts. Many now also hold the forward radar, a camera or the active shutters that close off the airflow, so the same model can take several different grilles depending on what was specified when new.

Why people replace one

  • A stone or a light knock has broken one of the slats, which cannot be glued back without showing.
  • The chrome or bright finish on the surround has lifted and started to flake, which spreads once the plating is broken.
  • The clips along the back have snapped, so the grille stands away from the bumper cover at one corner.
  • A badge mount has broken and the badge no longer sits flat.
  • The gloss black finish has gone dull and grey from washing and road grit.

Fitting it

  • A grille is usually held by clips around its edge and a few screws reached from behind, which often means taking the bumper cover off to reach them.
  • The badge, any surround trim and the radar or camera bracket normally transfer from the old grille.
  • Work the clips from behind rather than pulling on the slats, which break easily when cold.
  • If the grille carries a radar or a camera, that unit will usually need aiming or calibrating after it is disturbed.

Making sure it is the right one

  • Match the part number moulded on the back. A grille from a different trim level will clip in and sit correctly while being the wrong pattern or the wrong finish.
  • Check whether the grille has an opening or a mount for a radar or a camera. One without the mount cannot carry the unit, and one with it looks wrong on a car that has none.
  • Compare the finish as well as the shape: the same grille is made in gloss black, in a bright finish and in body colour, and these are separate part numbers.
  • Count the fixing points and compare their positions with your own grille before buying.

What to look for in the photographs

A Part number — Moulded into the back of the frame, often near an edge. This is the number to match.
B Radar or camera mount — An opening, a bracket or a blanking panel behind the badge. Compare it with your own grille, because this is what varies most between trim levels.
C Clips and mounting tabs — The row of clips and tabs around the back edge. Count them and look for any that are broken.
D Badge mount — The seat the maker's badge fits into. The badge is a separate part.
E Slats and mesh — Look along the slats rather than at them, which shows a cracked or missing one that a flat photograph hides.
F Surround finish — The outer frame: bright, gloss black or body colour. The finish is part of what you are matching.

This section describes grilles 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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