MERCEDES 350 (2016)
Running costs, reliability data, and common problems from 46 real MOT tests.
Annual Cost
£2,235
£186/month
MOT Pass Rate
91%
Excellent
Road Tax
£735
Based on CC/year
Insurance
Grp 35-50
3500cc Diesel
Great Choice
91% pass rate, £2235/year to run. 9 points above average.
Check a specific MERCEDES 350
Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.
Annual Running Costs
~40 mpg
Based on 3500cc
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
Get an insurance quote for this MERCEDES 350
Compare quotes and find the best deal
Reliability Verdict
Excellent reliability. Very few MOT failures. That's 9 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.
At 10 years old, 91% of MERCEDES 350s from 2016 passed their MOT first time in 2026. That's based on 46 tests across the UK. The average mileage at this age is 60,010 miles.
Got a MERCEDES 350 you're looking at?
Enter the reg plate to check its specific MOT history, mileage, and health score.
How Does It Compare?
Mileage Analysis
60,010
Average miles
74,000
Expected for age
The average 2016 MERCEDES 350 has 60,010 miles on the clock, which is in line with the expected 74,000 miles for a 10-year-old car, suggesting normal everyday use.
Looking at a specific MERCEDES 350?
Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.
MERCEDES 350 by Year
Similar Cars to Consider
Check a Specific Mercedes 350
Enter a reg plate to get the full MOT history, health score, and mileage verification.
Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.
About the 2016 MERCEDES 350
The 2016 MERCEDES 350 is a performance with a 3500cc diesel engine. 46 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2016, the average MOT pass rate is 85%, and this model beats that benchmark.
With an average of 60,010 miles at 10 years old, MERCEDES 350 owners drive about as much as the UK average.
2016 MERCEDES 350 Fuel Costs
The 3500cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2016 MERCEDES 350?
Total estimated annual running cost is £2,235 (£186/month), broken down as £1245 fuel, £735 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2016 MERCEDES 350
At 10 years old, the MERCEDES 350 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. Note: with only 46 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2016 MERCEDES 350's fuel type, age, and engine size, these are the most likely problem areas to check.
DPF (Diesel Particulate Filter)
Watch outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Watch outDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
AdBlue System
Medium riskPost-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.
EGR Valve
Watch outExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Dual Mass Flywheel
Watch outLarger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.
Rust and Corrosion
Watch outAt 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.
Suspension Bushings
Watch outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2016 MERCEDES 350 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| MERCEDES 350(2016) | 91% | £1245 | £735 | Grp 35-50 | £2235 |
| FORD RANGER(2018) | 85% | £1245 | £190 | Grp 35-50 | £1840-£395 |
| BMW 420(2016) | 89% | £1245 | £250 | Grp 35-50 | £1900-£335 |
| LAND ROVER DISCOVERY(2018) | 92% | £1245 | £190 | Grp 30-42 | £1690-£545 |
| JAGUAR F-PACE(2016) | 90% | £1245 | £250 | Grp 30-42 | £1750-£485 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Mercedes Models
Explore other Mercedes cars or similar models in the same category.
MERCEDES A
2019 · 1461cc Diesel
MERCEDES C
2017 · 1991cc Hybrid
MERCEDES A-CLASS
2017 · 1461cc Diesel
FORD RANGER
2018 · 3198cc Diesel
BMW 420
2016 · 4000cc Diesel
LAND ROVER DISCOVERY
2018 · 3000cc Diesel
Related Guides
In-depth articles relevant to the Mercedes 350.
Petrol vs Diesel in 2026: Which Actually Costs Less to Own?
8 min read
Buying GuideCars That Lose Value Fastest: Models to Avoid for Depreciation
8 min read
Running CostsCheapest Cars to Run in 2026: Real Data from 19.8 Million MOT Tests
9 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Problems: 7 Issues Owners Report (2026)
13 min read
Check a specific MERCEDES 350
Enter the reg to see its MOT history, mileage check, and predicted costs.
Premium History Check
Buying a MERCEDES 350? Our premium check covers:
- Stolen check (PNC)
- Outstanding finance
- Write-off history (Cat A/B/N/S)
- Previous owners count
Competitors charge £10-£20 for the same data