Just had a cylinder head replacement at 20,800 miles on my 2021 GLA 250. Whats up with this.
Steve Thomas
Hi SteveJust had a cylinder head replacement at 20,800 miles on my 2021 GLA 250. Whats up with this.
Steve Thomas
Just got the same news about my 2020 MB GLB 4matic @22k miles. They said it will take 4-6 weeks to get the cylinder head from Germany. Glad they gave me a loaner, but with this mechanical fault and all the safety recalls, I have to say I don’t think I’ll be continuing with MB.What's up is apparently a part that made it through in-line inspection that shouldn't have.
Case in point: My ordered 2011 Audi A5 leaked water into the cabin the very first rainfall post-delivery. And this despite the "monsoon test" you see at the assembly line end in all manufacturer factory videos. Some inspector wasn't doing their job!
Vendor parts usually undergo a sampling inspection and therefore not 100% inspected. However Benz-produced engines are at least supposed to be 100% cold tested (with compressed air) so certainly a bad head is atypical. Possibly a bad head gasket which led to valve damage?
Anyway, good to read you got it replaced/resolved under warranty and should be ok from this point on.![]()
Just got the same news about my 2020 MB GLB 4matic @22k miles. They said it will take 4-6 weeks to get the cylinder head from Germany. Glad they gave me a loaner, but with this mechanical fault and all the safety recalls, I have to say I don’t think I’ll be continuing with MB.
Thanks for sharing. I’m not going to buy mine either. It’s kind of like they leased us lemons.Apparently it is a known issue. I just came back from the dealer today, my wife's 2021 GLA 4Matic with 20,000 miles has a bad cylinder head. it will take about a week to fix so they provided a loaner in the meantime.
Glad this is a lease, the wife was planning to keep it after the lease ends, but not anymore.
See what they’ll value it at, but tbh I wouldn’t bother trading right now. With this many failures, there’s bound to be a recall soon. If there is no recall towards the end of your warranty, then I’d say trade it in. That way you’ll get the most for your money already spent since depreciation will be hardest in the first 2 years.Same thing happened to me, i have a 2021 GLB 250 4MATIC, 20K miles cylinder head went bad. Unfortunately not a lease, wondering if we should trade it in while it hasnt blown up lol?
Yes, that’s correct. They can’t bill you for anything if a recall is put out. Additionally, the point of a recall is to replace the faulty parts with something that won’t fail, so they redesign parts or make them from more robust components to ensure longevity.Meaning if they recall it, I have a guaranteed free fix every time it goes bad?
Had the same thing happen to me at 26,500Kms- took a long time to diagnose this issue-Dealer has given me a loaner and apparently take 2-3 weeks to get fixed-Same thing has just happened to me at 17600mi. I have burnt valve or seat in one cylinder. 2 weeks at least before I get it back. And here I thought I was buying a quality automobile for the first time in my life.
How do you guys(owners) feel going forward?