Thanks Mark! I actually got as far as this,

(item 50)

A1776808603

I will just have to decide if it’s really needed, MOT was today and they said it’s structurally sound and not a big issue (which I know)

Same time, not a huge cost / simple fix 👍

 

I just had a similar call out during my B1 and chose to ignore it for now (the crack wasn't so bad). This was for the rear cover, but maybe this helps you and or your search for the cover you need:

GENUINE MERCEDES A CLASS W177 2017-2022 REAR BOOT UNDER TRAY COVER A1776901202

Good Luck,

Mark

 

I managed to use a parts company (that has diagrams) to find the exact part number.

Looks like I can get it for £125 delivered from Germany, part is £80. That gives me a benchmark and comparison.

Used that company before to repair my Audi in the past 🤗

So DIY repair, DIY replace or just ask MB to swap on next service, unless their pricing is a joke.

 

I repaired an undertray on a sshhhh bmw successfully with fibreglass. Cheap repair kit from amazon, just make sure everything is degreased, clean and roughened up before applying resin and glass mat. Mine has been in place for at least 2 years with no ill effect.

 

I was thinking about plastic weld after posting, so fibre glass is a good shout. I will call MB and get a price from service team tomorrow on the part. Weigh things up

still not sure exactly what bit crunched, even if lightly! Eugh 😢

 

I looked on the original vid I got them to video under the car for purchase, that was already damaged, it was very hard to see but it was there. So it’s fairly solid, but I just don’t like things like that. And rather it didn’t get wind under it and slowly rip itself off!