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Discussion Starter #1
Hey so I have a 2015 Smart Fortwo passion and I just recently started noticing it was driving different and when I wuld press the gas I wuld hear a loud rattling. Idk what to check and I don’t have an extra 200$ for the dealer ship to do a diagnostic. The car only has 40,000 miles on it and I just did an oil change 2300 miles ago. And idk if this help but I started to see like one or two drops coming from my dif Nd it doesn’t leak bad just one or two drop here an there. Plz help me
 

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Discussion Starter #3
Hey so I have a 2015 Smart Fortwo passion and I just recently started noticing it was driving different and when I wuld press the gas I wuld hear a loud rattling. Idk what to check and I don’t have an extra 200$ for the dealer ship to do a diagnostic. The car only has 40,000 miles on it and I just did an oil change 2300 miles ago. And idk if this help but I started to see like one or two drops coming from my dif Nd it doesn’t leak bad just one or two drop here an there. Plz help me
 

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Where is the rattle coming from? It could be something as simple as a loose muffler heat shield. Can you be more specific, please?
 

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Discussion Starter #6
Sorry I try to explain it to the best of my ability and yes I hear it in the back. And a loose muffler culd be that the bolts are loose or?
 

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Since the engine is in the back, it could be many things. The first thing I would do is wait for the car to cool, jack the car up, put it on jack stands for safety, then have a look for anything loose. I’ve found a loose muffler heat shied can be very noisy and rattle. It’s located above the muffler and should be rigidly attached, but the supports can rust leaving it flopping around making noise. You can check for a loose belly pan, frayed belts, torn CV boot or anything else that moves, but shouldn’t.
 

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Discussion Starter #9
Ok ima
Since the engine is in the back, it could be many things. The first thing I would do is wait for the car to cool, jack the car up, put it on jack stands for safety, then have a look for anything loose. I’ve found a loose muffler heat shied can be very noisy and rattle. It’s located above the muffler and should be rigidly attached, but the supports can rust leaving it flopping around making noise. You can check for a loose belly pan, frayed belts, torn CV boot or anything else that moves, but shouldn’t.
ima take a look rn
 

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Sounds like separate issues. Find the rattle location, for the leak rear axle shaft may need seals,
 

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The way the rattle is described I would look at the front motor mount. The rubber bushing may be cracked.

If that's the case, the part should run you less than $40. Replacing it yourself should take ~30 minutes, if you have the tools.

Instructions can be found on Evilution's website or via YouTube.
 
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