2018 · MINICooper S Countryman All4
What the data shows
The 2018 MINI Countryman Cooper S All4 with the B48 engine is a relatively reliable modern MINI, but at 107k miles expect to budget for water pump, oil leaks, carbon cleaning, and wear items like brakes and tires. The asking price is fair, and a pre-purchase inspection is reasonable to assess condition and maintenance history.
Red flags
- High Mileage
107k miles means upcoming maintenance and potential repairs
- Toronto Salt Exposure
road salt can cause underbody corrosion, inspect thoroughly
What’s costing this car points
Every car starts at 10. Each problem below takes points off. Serious and expensive problems take more, and so do problems that usually show up at about the miles this car has now.
- Timing Chain TensionerUsually shows up around 100k mi · $1,500 to $2,500 to fix−2.1
- Water Pump/ThermostatUsually shows up around 70k mi · $800 to $1,200 to fix−0.9
- High-Pressure Fuel Pump (HPFP)Usually shows up around 90k mi · $800 to $1,200 to fix−0.5
- 11 smaller items−0.6
When this car gets expensive
The chance of a major repair as the miles add up. This one is at 107k, past where the climb starts around 80k.
8.0 if the top three turn out fine. Ask the seller for repair records.
Deal Score weighs the asking price against comparable listings, the title, and the repairs documented in this guide.
- Price 10% below market
Detailed findings, 14 items
Click any card for the full breakdown, repair cost, and what to check. Items already handled by the owner show as checked.
Reflects the open findings; items the owner handled are excluded.
Costly repairs, but not urgent to verify before you buy. Price them out and use them to negotiate.
Water Pump/Thermostat
The electric water pump and thermostat are known failure points on the B48, often leaking coolant around 60-80k miles. At 107k miles, it may have already been replaced or due soon.
Oil Filter Housing Gasket
The gasket between the oil filter housing and engine block can leak oil, which may drip onto the drive belt. If not addressed, oil contamination can cause belt failure.
High-Pressure Fuel Pump (HPFP)
The HPFP can fail, causing long cranking times, stalling, or hesitation. Not as common as earlier MINI engines, but still reported.
Timing Chain Tensioner
The B48 engine is less prone to timing chain issues than earlier MINI engines, but some reports of rattle on cold start at higher mileage. If the chain stretches or tensioner fails, it can cause serious engine damage.
Minor wear typical for the car’s age. Not worth negotiating over, but good to track as an owner.
Coolant Expansion Tank
The plastic expansion tank can crack and leak coolant, especially as it ages.
Valve Cover Gasket
The valve cover gasket may develop leaks, causing oil to seep onto the exhaust manifold and produce a burning smell.
Intake Valve Carbon Buildup
Direct injection engines like the B48 accumulate carbon on intake valves, which can cause rough idle, power loss, and misfires. Walnut blasting is recommended every 80-100k miles.
Transmission Fluid Service
The Aisin 8-speed transmission requires fluid changes every 50-60k miles for longevity. At 107k miles, it should have been done at least once. If neglected, it may lead to shifting issues.
Brake Pads and Rotors
At 107k miles, brake pads and rotors are likely near the end of their life, especially if not yet replaced. Expect to replace them soon.
Tire Tread Depth
Tires may be worn or original, needing replacement. Check for uneven wear indicating alignment issues.
Front Suspension Components
Struts, control arm bushings, and sway bar links may show wear at this mileage, causing clunks and poor handling.
All4 Drivetrain Fluids
The transfer case and rear differential fluids should be changed periodically. At 107k miles, if not done, consider servicing to prevent wear.
Engine Mounts
Hydraulic engine mounts can leak fluid and cause excessive vibration, particularly at idle. Not extremely common, but worth checking.
Turbo Wastegate Rattle
Some B48 engines develop a wastegate rattle that may require turbocharger adjustment or replacement. This is less common but can be expensive.
What's working well
B48 Engine Reliability
The updated B48 engine is known for fewer timing chain and oil consumption issues than earlier MINI engines, making this generation a more reliable choice.
Reduces the risk of major engine repairs common in older MINIs.
Every finding still open carries a question worth asking. Copy them as one message, already ordered by severity. Anything you have marked above drops off on its own.
Price & negotiation
BetaBased on comparable listings and the repairs you can document. A starting point for what this car should cost.
Price breakdown
Pricing models disagreed on this vehicle, so treat the market estimate as a rough range rather than a precise number. Recent local listings are the best tiebreaker.
What it costs, and when
Verify now
Critical and major items to confirm first.
Possible year-one expense
Caution items with repair-cost context.
Watch later
Lower-confidence or no-cost items to monitor.
Each range is what that one item costs if it turns out to be present. Not every item will apply to this car, so they do not add up to a bill. Verify with a mechanic.
Asking is $13,000 against a typical $14,500 for this car and mileage. The work is the difference, not the sticker.
Negotiate your offer
Asking is about 10% below the market estimate, so there may be less room to move. The documented repairs below are still relevant to raise.
- Documented critical/major repairs of $3,500–$5,500 you can point to.
- Strongest items to raise first: Timing Chain Tensioner, Water Pump/Thermostat.
Pricing is in beta. The market estimate comes from research models and can be off by thousands on the same car, so check recent local listings before you rely on it. This is information to help you research, not a professional inspection, an appraisal, or financial advice.
Recalls & safety
NHTSA crash-test ratings and recall data for this make, model, and year. Check recall status with your VIN before buying.
In-person inspection
14 things to check before you buy
4 major and 10 caution findings, turned into a walkthrough for the driveway. Try it on this sample.
Before you leave: Ask the seller not to start or move the car before you arrive. A sales-ready car has usually been warmed up, and a warm engine hides the startup smoke, rattles and rough idle that the first section is built around.
Everything on this list is what you can see standing next to the car. A shop on a lift sees the rest, and a written pre-purchase inspection listing parts and labor is what a seller has to answer to. Budget roughly $100 to $150 at an ASE-certified shop.
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