2017 Mercedes-Benz C350E

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2017 Mercedes-Benz C350E has 9 owner complaints filed with NHTSA — that's 0.1x the segment average of 80. The most common issue is engine problems (33% of all complaints), specifically: check engine light. code: p052e, positive crankcase ventilation regulation performance..

Total Complaints

Recalls Issued

—/5

Safety Stars

0.1x

vs Segment Avg

Known Problems

ENGINE

3 complaints

33%

• Check engine light. Code: P052E, positive crankcase ventilation regulation performance.
• I have a 2017 C350E with 69K miles. Dealer wants $2900 to fix the Crankcase Ventilation Valve. The part that needs to be replaced costs about $600 with lot of labor time involved (~$2500). The part number is 274090560084. The C350E has a 15 year emissions control warranty in California that is supp
• Check engine light came on, a day after purchasing from dealer. Mileage at 55k. Check engine light code was p052e71, confirmed from 2 auto repairers. One was Mercedes Benz who quoted me $3900 to repair. In the Mercedes Benz booklet warranty says emission related repairs are covered for 15 years/150k

Typical onset: 50K miles Est. repair: $500

“Check engine light. Code: P052E, positive crankcase ventilation regulation performance.”

— NHTSA complaint filing

FUEL SYSTEM

2 complaints

22%

• CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM
• Check engine light came on, a day after purchasing from dealer. Mileage at 55k. Check engine light code was p052e71, confirmed from 2 auto repairers. One was Mercedes Benz who quoted me $3900 to repair. In the Mercedes Benz booklet warranty says emission related repairs are covered for 15 years/150k

Typical onset: 50K miles Est. repair: $500

“CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM”

— NHTSA complaint filing

ELECTRICAL

1 complaints

11%

• CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM

Typical onset: 50K miles Est. repair: $500

— NHTSA complaint filing

SUSPENSION

1 complaints

11%

• CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM

Typical onset: 50K miles Est. repair: $500

— NHTSA complaint filing

OTHER

1 complaints

11%

• Car had 69,300 miles (5 3/4 years old) at time of service on 4/18/2023. The check engine light came on the day before. Dealer performed diagnostic- stated it was the Crank Case Ventilation that needed to be replaced. I was charged $2107.00 $1710.00 for labor, $397.00 for parts. I have owned 2 othe

Typical onset: 50K miles Est. repair: $500

“Car had 69,300 miles (5 3/4 years old) at time of service on 4/18/2023. The check engine light came on the day before. Dealer performed diagnostic- stated it was the Crank Case Ventilation that needed to be replaced. I was charged $2107.00 $1710.00 for labor, $397.00 for parts. I have owned 2 othe”

— NHTSA complaint filing

Estimated Repair Costs

ENGINE(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

SUSPENSION(~50K mi)

$500

OTHER(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 9 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: Check engine light. Code: P052E, positive crankcase ventilation regulation performance.
Typically appears around 50K miles. Repair cost ~$500
☐
FUEL SYSTEM: CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM
Typically appears around 50K miles. Repair cost ~$500
☐
SUSPENSION: CAR IS MAKING WEIRD NOISES FROM THE FRONT ELECTRICAL AC SIDE- IT IS HARD TO BREATH AC AIR (SMELL LIKE PLASTIC) . PRESSING BRAKES CAR IS HANDLING BAD AND GOES SLIGHTLY INTO OTHER LANE. I TOOK CAR TO DEALER- THEY COULD NOT FIND THE PROBLEM
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Mercedes-Benz C350E — Year Comparison

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

2017

9Excellent Reliability

2016

10Excellent Reliability

Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints: 9
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 C350E

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