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BMW G32 6 Series Gran Turismo buyer's guide

2018–2019 · 640i xDrive Gran Turismo (B58)

BMW 640d xDrive Gran Turismo (G32)
BMW 640d xDrive Gran Turismo (G32). Photo: Alexander Migl, CC BY-SA 4.0, via Wikimedia Commons (cropped, resized).

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Engines by year Model-year changes Known problems Warranty extensions Recalls Inspection checklist Red flags Specs Paint codes Coding Ownership costs Sources

Models and engines by year

ModelUS model yearsEngine
640i xDrive Gran Turismo2018–2019B58

US-market models. Chassis codes: G32. Not sure which one you have? The VIN check decodes year, model and engine.

Model-year changes

Model yearWhat changed
US salesOnly the 640i xDrive was sold in the US, for the 2018 and 2019 model years; the car continued elsewhere until 2023.6
2018US lineup in the EPA listings: 3.0L 6-cyl turbo: 640i xDrive Gran Turismo.7

US model years unless noted. "LCI" (Life Cycle Impulse) is BMW's name for a mid-cycle facelift.

Known problems and when they show up

Mileages are what the cited shops, specialists and owner forums report. They are typical ranges, not predictions for any one car.

B58 engine

640i xDrive Gran Turismo (2018–2019) · B58 bulletins

ProblemWhen it shows upWhat to knowRepair prices
Coolant loss: oil filter housing, vent hose, water pump, expansion tankcommonly from about 60,000–80,000 miles; water pumps typically last about 75,000–100,000Often a slow "ghost" leak you smell but can't see. A pressure test finds it. Common sources are the plastic oil filter housing and its coolant vent hose, the water pump and the expansion tank.1,2,3B58 / B48 oil filter housing (coolant leak)
Owners paid: indie shop $1,800–$3,300 · dealer $2,825–$3,950
Valve cover gasket and PCVvalve cover gaskets about 60,000–100,000 milesOil on the spark plugs, burning-oil smell, low-oil warning. In November 2023 BMW NA mailed owners a 15 yr/150,000 mi warranty extension for the crankcase pressure control (PCV) valve (details and letter on our job page).4,1B58 valve cover / PCV failure
Owners paid: dealer $3,049–$4,450
Fuel tank vent (purge) valveany mileageEvap check-engine light. BMW NA extended the warranty on this valve to 15 yr/150,000 mi on many B46/B48/B58 cars (SIB 01 02 24 and later; listed on our job page).5B58 / B48 fuel tank vent valve (purge valve)

Warranty extensions and service campaigns 11

Warranty extensions (11)

Filed by BMW with NHTSA. Extensions usually follow the car to later owners and can reimburse earlier repairs; a BMW dealer can confirm by VIN.

NHTSA safety recalls 2

  • Recall 19V684: camera 330I, 530E, 530I, 540D, 540I, 640I, 740LE, 740LI, 745LE, 750LI, 840I, M340I, M5, M550I, M850I, X3, X4, X5, X6, X7, Z4, 2018–2020. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse.
  • Recall 18V465: engine 230I, 330E, 330I, 340I, 430I, 440I, 530E, 530I, 540D, 540I, 640I, 740I, M240I, X1, X2, 2018–2019. The crankshaft sensor may be equipped with incorrect firmware, preventing the sensor from properly processing input from the crankshaft reluctor ring, possibly resulting in a vehicle stall.

Matched from NHTSA's public recall file by model and model year. A recall may cover only some cars from a year, and it may already have been done on yours. Check by VIN →

Test drive and inspection checklist

  1. Run the VIN for open recalls. Open safety recalls are free at any BMW dealer. Check on NHTSA's site or our recall page before you buy.8
  2. Scan for stored fault codes with a BMW-capable tool. A generic OBD reader misses most BMW modules. Specialist guides recommend a BMW-level scan (ISTA or similar) to catch faults that have been cleared from the dash but still stored.9,10
  3. Start it from cold. Ask the seller not to warm the car up first. Chain rattle, VANOS rattle, lifter tick and rough idle show most clearly in the first seconds after a cold start.9,11,12
  4. Ask a BMW dealer about warranty extensions and campaigns. Several BMW warranty extensions follow the car, not the owner, and some reimburse earlier repairs. A dealer can check the VIN. The list for this chassis is below.
  5. Get a pre-purchase inspection from a BMW specialist. A few hundred dollars for an independent BMW specialist is the usual advice, especially for M cars and high-mileage turbo engines.13,9

Engine items to listen and look for are in the known problems section.

Service-history red flags

  • Oil changes only at the long computer interval. Several guides advise changing oil more often than the onboard service indicator (CBS) suggests, especially with lots of city driving.12,14
  • Gaps in the records around known failure mileages. If the engine section below lists a job that usually comes due at the car's mileage, ask for the invoice. A missing record isn't proof it wasn't done, but it is a negotiating point.
  • Tuned or "deleted" cars. Tunes, emissions deletes and removed parts complicate warranty claims and inspections and raise wear on turbo cars. Ask, and look for aftermarket intakes, downpipes and charge pipes.
  • B58: ask for records of Coolant loss: oil filter housing, vent hose, water pump, expansion tank; Valve cover gasket and PCV; Fuel tank vent (purge) valve.

G32 specs

No manual gearbox appears in the EPA listings for this chassis. Full G32 specs: every US engine, transmission and drive by year →

Factory paint and option codes

Paint colors BMW of North America listed for the G32 in the ordering and pricing guides we read:

CodeColorModel years
300Alpine White2019
416Carbon Black Metallic2019
475Black Sapphire Metallic2019
668Jet Black2019
A83Glacier Silver Metallic2019
A90Dark Graphite Metallic2019
A96Mineral White Metallic2019
B65Jatoba Brown Metallic2019
C10Mediterranean Blue Metallic2019
C25Royal Burgundy Red Metallic2019
C2SJucaro Beige Metallic2019
C2YBluestone Metallic2019

73 option codes are listed for the G32 in the same guides. Search them.

Only model years covered by the guides we could obtain are shown.

Coding

The coding apps' own lists show 178 settings that owners can change on the G32 with a phone and an OBD adapter, in areas such as Seat heating/cooling, Head-Up Display, Display options instrument cluster, Convenient opening/closing, Display options iDrive system, Audio. 142 come from BimmerCode's list and 36 more appear only in Carly's list.

Full G32 coding list with tool, difficulty and caveats →

Ownership costs

Routine maintenance: oil service prices by engine size, published BMW Value Service prices (brakes, spark plugs) from 16 US dealers, and the G32 maintenance schedule.

Repairs we price that apply to the G32

Repair and owner-reported prices
B58 / B48 oil filter housing (coolant leak)
Owners paid: indie shop $1,800–$3,300 · dealer $2,825–$3,950
B58 valve cover / PCV failure
Owners paid: dealer $3,049–$4,450
B58 / B48 fuel tank vent valve (purge valve)
B58 coolant expansion tank (G05 X5 40i, high- or low-temp)
B58 heat management module (thermostat) replacement
B58 oil pump replacement
Owners paid: indie shop $2,865–$3,600
B58 water pump (coolant pump)

"Owners paid" is the middle 50% of sourced owner prices across chassis with the same engine. Each job page reprices for your ZIP.

By model year

YearModels and enginesNHTSA recallsWarranty extensionsRepairs we price
2018640i xDrive Gran Turismo B582117
Priciest: B58 valve cover / PCV failure, owners paid up to $4,450 (dealer, middle 50%)
2019640i xDrive Gran Turismo B582117
Priciest: B58 valve cover / PCV failure, owners paid up to $4,450 (dealer, middle 50%)

Recalls and warranty extensions are counted when their published model-year range includes that year. Each one may cover only some cars, so check by VIN. Repairs counted are the ones whose engine was offered that year.

More for the G32

G32 repair costs and recalls G32 common problems G32 maintenance schedule Used BMW VIN check

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