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Inspections & Reports / BMW 3-Series / 2018
Model-Year Guide2018 · BMW 3-Series

Pre Purchase Inspection for 2018 BMW 3-Series

N20 timing chain, oil-filter housing leaks, and electronics. We check the known trouble spots before you pay.

Get this 3-Series inspectedRequest online ↓

Buying a 2018 BMW 3-Series? Smart move to check it first. The engine it has changes what matters most.

Transmission: 8-speed automatic or 6-speed manual. Last year of this body. Scan for boost and VANOS faults.

Engines for 2018
  • 2.0L turbo (B46/B48)
  • 3.0L turbo (B58)
Known problem areas — what we check
Costly Safety Common Verify
N20 timing chainCostly

Early N20/N26 engines (mainly 2012–2015) can stretch or fail the timing chain.

WE CHECK We listen for a rattle and check for service records on the chain.

Oil-filter housing leakCommon

The oil-filter housing gasket leaks oil, often onto the belt.

WE CHECK We check for oil leaks around the housing and belt.

Valve-cover gasket leakCommon

The valve-cover gasket weeps oil over time.

WE CHECK We check the valve cover for seepage.

Electric water pumpCostly

The electric water pump can fail and overheat the engine.

WE CHECK We check coolant temp behavior and pump history.

Charge pipe / VANOSVerify

Plastic charge pipes can crack; VANOS solenoids can fault.

WE CHECK We scan for boost and VANOS codes.

Before you look at a 2018 3-Series
  • Confirm timing-chain service on early N20 cars
  • Check for oil leaks at the housing and valve cover
  • Review full service history
  • Scan for boost and VANOS faults
Safety record (live from NHTSA)
2018 BMW 330i · Federal RecordsSource: NHTSA.gov
1
Recalls
—
Complaints
130
Service Bulletins
Loading the latest federal safety records…
Common service bulletins (TSBs)

A TSB is a note the maker sends to dealers about a known fix. They are not recalls. We check the bulletins so we know what to look for:

Engine & Drivability28

Cold-start noise, drivability, and idle issues for this vehicle. We test for each.

Power Train · Automatic2

Shift quality and transmission fluid updates. We drive every gear.

Electrical & Body100

Locks, wipers, infotainment, and trim items. Small, but good to know.

Counts are pulled from NHTSA's public Manufacturer Communications file. Full bulletins stay with the maker — we use the summaries to guide the inspection.

Common questions
Is the N20 timing chain a big deal?
It can be on early cars. We check for the rattle and the service record.
Do these leak oil?
Commonly at the filter housing and valve cover. We check both.
Where do you inspect?
All 48 states.
Recalls?
Yes, we pull them.
Buying this one?

We'll check it first

Pre-tagged for the 2018 BMW 3-Series. One call and a tech is on it.

951-267-8500Call now
Other 3-Series years
2012 3-Series First year of this bod…2013 3-Series Diesel and wagon added…2014 3-Series Check for oil leaks at…2015 3-Series Last year of the N20 b…2016 3-Series Facelift and all-new e…2017 3-Series Service history still …

Request a 2018 3-Series inspection

Pre-tagged for the 2018 BMW 3-Series.

Details

No payment now · We confirm scheduling before any work

Buying a 2018 3-Series? Let us check it first.

Engine-specific checks, a live recall pull, and a clear report.

Call 951-267-8500