BestCarRank
Mercedes-Benz

2017 Mercedes-Benz SLC300

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2017 Mercedes-Benz SLC300 has 5 owner complaints filed with NHTSA — that's 0.1x the segment average of 80. The most common issue is other problems (40% of all complaints), specifically: tl* the contact owns a 2017 mercedes-benz slc300. the contact received notification of nhtsa campaign number: 21v058000 (communication, electrical system) however, the part to do the recall repair was not yet available. the vehicle was taken to mercedes-benz of hilton head (155 fording island rd, bl.

5

Total Complaints

0

Recalls Issued

—/5

Safety Stars

0.1x

vs Segment Avg

Known Problems

OTHER

2 complaints
40%
  • • TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BL
  • • On September 6, 2025 while driving approximately 70 mph, the front roof panel of my vehicle detached completely. This was not only a costly failure, but also an extremely dangerous incident that could easily have caused severe injuries or fatalities — either to myself, my passengers, or other motori
Typical onset: 50K miles Est. repair: $500

“TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BL”

— NHTSA complaint filing

ELECTRICAL

1 complaints
20%
  • • TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BL
Typical onset: 50K miles Est. repair: $500

“TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BL”

— NHTSA complaint filing

ENGINE

1 complaints
20%
  • • Piston 1 broken at 76000 miles. Compleat engine failer
Typical onset: 50K miles Est. repair: $500

“Piston 1 broken at 76000 miles. Compleat engine failer”

— NHTSA complaint filing

BODY/STRUCTURE

1 complaints
20%
  • • The contact owns a 2017 Mercedes-Benz SLC300. The contact stated that while driving at an undisclosed speed, there was a loud whistling sound coming from the upper panel of the roof. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the bonding of the upper
Typical onset: 50K miles Est. repair: $500

“The contact owns a 2017 Mercedes-Benz SLC300. The contact stated that while driving at an undisclosed speed, there was a loud whistling sound coming from the upper panel of the roof. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the bonding of the upper”

— NHTSA complaint filing

Estimated Repair Costs

OTHER(~50K mi)
$500
ELECTRICAL(~50K mi)
$500
ENGINE(~50K mi)
$500
BODY/STRUCTURE(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 5 owner complaints for this specific year, here's what to check or ask about:

  • ☐
    OTHER: TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BL

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    ELECTRICAL: TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BL

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    ENGINE: Piston 1 broken at 76000 miles. Compleat engine failer

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    BODY/STRUCTURE: The contact owns a 2017 Mercedes-Benz SLC300. The contact stated that while driving at an undisclosed speed, there was a loud whistling sound coming from the upper panel of the roof. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the bonding of the upper

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Mercedes-Benz SLC300 — Year Comparison

How does 2017 compare to other years? Fewer complaints = more reliable.

2017
5Excellent Reliability
Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
5
Recalls
0
Fire reports
0
Crash reports
0
Injury reports
0
Segment avg
80

Check a Specific VIN

See recalls for YOUR 2017 Mercedes-Benz SLC300

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