MODEL SPECIALISTS · BMW 4 SERIES
BMW 4 Series servicing & repair
Coupé, Convertible or Gran Coupé — every 4 Series shares its engines and running gear with the 3 Series we work on daily, so servicing yours is home ground for our technicians.
GENERATION BY GENERATION
What we look for on yours
Both 4 Series generations have their own patterns. Knowing them means we catch small issues at service time — before they become big invoices.
G22 / G23 / G26
2020 — present · Gran Coupé from 2021
Today's 4 Series pairs B48 four-cylinder and B58/B57 six-cylinder power with 48-volt mild-hybrid tech, and is proving impressively dependable. The electric i4 shares the Gran Coupé shell — we look after that too.
COMMON CHECKPOINTS
•M440i 48V starter-generator coolant-leak check
•B48 & B58 oil and coolant-leak inspection points
•G23 fabric roof, seals & drain channels kept clear
•Outstanding software & recall campaigns checked
F32 / F33 / F36
2013 — 2020 · incl. F33 folding hardtop
The original 4 Series put 3 Series running gear into a sleeker shell. Most are now at the mileage where cooling parts, bushes and run-flat tyre wear deserve a proper look.
COMMON CHECKPOINTS
•N20 timing-chain guides on pre-2015 420i & 428i
•Early 420d N47 chain rattle; B47 fitted from 2015
•Electric water pump & plastic coolant pipes by ~80k
•F33 hardtop drains, quarter seals & roof motors
SERVICE INTERVALS
What your 4 Series needs, and when
Your car's Condition Based Servicing adjusts these to how you drive — we read the live data from the car and confirm before quoting.
Typical guide intervals shown for petrol and diesel models across both generations.
ITEMTYPICAL INTERVAL
Engine oil & filter10,000 mi / 12 months
Micro / cabin filter2 years
Brake fluid2 years
Air filter3 years / 30,000 mi
Spark plugs (petrol)4 years / 40,000 mi
Fuel filter (diesel)3 years / 30,000 mi
Vehicle check & MOTEvery 12 months
WHY OWNERS CHOOSE DACK
The 3 Series in a sharper suit
Genuine parts, dealer diagnostics and a digital service record stamp on every visit — plus Service Club discounts that make proper maintenance affordable at any age or mileage.
✓Every engine known inside out — N20 and N47 fours to B58 and B57 sixes
✓Coupé, Convertible and Gran Coupé — folding-hardtop and fabric-roof care included
✓M440i and M4 welcome — performance experience in-house