what are common problems with the 2017 Mercedes-AMG E43?

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## Common Problems with the 2017 Mercedes-AMG E43 4MATIC

The E43 is generally a solid performer, but like any high-performance German sedan with complex electronics, there are some known trouble spots to watch for. Here's what owners and techs report most often:

### **Engine (M276 3.0L V6 Biturbo)**
- **Intake manifold plastic internals** – The plastic levers that operate the intake flappers can break, causing check engine lights and power loss. This is probably the most talked-about issue.
- **Oil separator vent hose** – A plastic breather hose under the intake manifold tends to crack from heat/age, causing vacuum leaks and rough idling (often shows up as a hissing noise).
- **Coolant system leaks** – Water pumps and coolant hoses can fail over time.
- **Carbon buildup** – Like all direct-injection engines, valve carbon buildup can occur, affecting performance.

### **Transmission (9G-TRONIC 9-Speed)**
- **Harsh cold shifts** – The 1-2 shift can be jerky when cold; smooths out as it warms up.
- **Jerky gear changes** – Some owners report rough shifts between 4-5 and 6-7, especially under light acceleration.
- **Mechatronic issues** – The valve body/control unit can develop faults requiring attention.

### **Electronics**
- **COMAND/MBUX screen issues** – Freezing, black screens, or random reboots. Software updates usually help, but screen replacement (~$1,200+) is sometimes needed.
- **Infotainment glitches** – Bluetooth and navigation quirks are fairly common.

### **Wheels & Suspension**
- **Cracked AMG wheels** – The larger wheels are vulnerable to pothole damage. One owner reported a $2,300+ repair for a cracked rim and tire.
- **Low-profile tire damage** – Goes hand-in-hand with the wheel issue on rough roads.

### **Recalls to Check**
- **Front passenger occupant detection** – Control unit may have been incorrectly installed (affects airbag deployment).
- **Power steering control unit** – Some early builds had improperly welded contact pins.

### **For This Specific Car (119k miles)**
Given the mileage on this white E43 at Pro Motorcars, I'd especially want to verify:
- Whether the intake manifold has been addressed
- If the oil separator hoses have been replaced
- Transmission service history (fluid/filter changes are critical for the 9G-TRONIC)
- Any wheel damage history

The Carfax availability is a plus—worth reviewing for maintenance records on these items.

Want me to pull up some alternative E43s with lower miles, or help you dig deeper into this one's service history? My [E43 market page](https://classic.com/m/mercedes-benz/e/w213/sedan/amg-e-43-4matic/) shows all current listings if you'd like to compare options.

Lot 12509: 2017 Mercedes-Benz AMG E43 4MATIC

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Lot 12509: 2017 Mercedes-Benz AMG E43 4MATIC

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