Question about Engine Mounts for Mercedes E250 W212 — Same Part Number for Both
I recently purchased a pair of engine mounts for my 2014 Mercedes E250 W212 (Febi brand). I have a few concerns and would really appreciate your advice:
- Both mounts have the exact same part number, but they came in separate boxes. Shouldn’t there be a “LEFT” and “RIGHT” designation? There’s nothing written about left or right on either box or the mounts themselves.
- Are the mounts supposed to be identical, or are they usually different for each side on this model?
- I asked the shopkeeper, and he said it’s completely normal — that they use the same part number for both sides.
- I also tried searching the part number online, but I couldn’t find clear information regarding left/right fitment.
Should I keep these mounts, or do I need to return them and get different ones for each side?
Has anyone else faced this? Any guidance would be really helpful before I go ahead with the installation.
Thanks in advance!
Last edited by Spruze; Jul 11, 2025 at 05:58 AM.
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SKU:FEB-29975FCP Euro ID:722686GTIN / UPC:04027816299752
Made in:Spain Quality:Aftermarket
OE Numbers
2042400917, 2042404317MFG Numbers, [size=13px]29975[/size]
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Often both are different P/N , mine is and so is M276.9 3.5NA type W212 chassis code W212.059
M276.9 3.5NA engine. Same for both.
My E400 and a C200 W204 engine mounts P/N
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BWT, Febi qualty I read is not so good. But since you already bought it, use it.
I stick to MB original mount.
Some information on engine mounts for your fun reading :
https://mbworld.org/forums/e-class-w...tear-down.html
Last edited by S-Prihadi; Jul 11, 2025 at 10:01 PM.
I am really confused and worried should I get mine installed or replace them with some other brand? Can you please confirm with the VIN that are they identical? Because I am sure the MB p/n are also different but in real do they really have a difference?
Often both are different P/N , mine is and so is M276.9 3.5NA type W212 chassis code W212.059
M276.9 3.5NA engine. Same for both.
My E400 and a C200 W204 engine mounts P/N
------
BWT, Febi qualty I read is not so good. But since you already bought it, use it.
I stick to MB original mount.
Some information on engine mounts for your fun reading :
https://mbworld.org/forums/e-class-w...tear-down.html




I am really confused and worried should I get mine installed or replace them with some other brand? Can you please confirm with the VIN that are they identical? Because I am sure the MB p/n are also different but in real do they really have a difference?
So in India the MB cars ( unless true AMG ) is also locally assembled like in Indonesia ?
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Get genuine MB mounts...... u will sleep well.

Last edited by S-Prihadi; Jul 12, 2025 at 02:15 AM.




It is not about how long it will last, it is about how well zero vibration transfer to your car should handled by the said mount.
I replace mine every 25,000KM
I am now at 43,000KM ish and on my third set of engine + tranny mounts, including 1st one from factory built in 2014. Thus I replaced on my own twice already.
My roads are bad too.



