Pinpoint Motorwerks

Mobile BMW mechanic · Nairobi, Kiambu & environs

We find the fault before we touch a part.

Independent BMW engine and transmission specialists. We come to your home, office or parking, run a full dealer-level diagnosis, and explain exactly what is wrong, what it will cost, and what can wait.

ISTADealer-level diagnostics
OEMNew genuine parts only
On-sitePlus our own workshop
SAMPLE REPORT · E60 · M54B25Nairobi
ISTAFull vehicle test, fault memory readdone
COOLCooling system pressure testfail
HISTSigns of past overheat, head previously openedfound
COMPCompression & leak-down, replacement enginepass
ELECBattery, charging, harnesscheck
FANElectric fan & temp sensorspass
VERDICTPrevious overheat damage. Fit a tested replacement engine and renew the full cooling system. Parts list and options attached.
STRAIGHT-SIX · DOHC · CUTAWAY 1 2 3 4 5 6

Know your engine

Where BMW engines usually fail

  1. 1VANOS & timing chainRattles, rough idle, cam timing faults.
  2. 2Valve cover & oil filter housingOil leaks onto the belt and exhaust.
  3. 3Coils & injectorsMisfires, hard starts, fuel smell.
  4. 4Cooling systemWater pump, thermostat, hoses. The top engine killer.
  5. 5Turbo & boostWastegate rattle, boost leaks, low power.
  6. 6ZF gearboxHarsh shifts, mechatronic sleeve leaks.

Parked BMW? Read this

Has your BMW been stalled for months?

Many owners give up after several garages, a pile of replaced parts, and still no answer. Invite us. We will diagnose it together, beside the car, and show you the real issue with the engine.

BMWs are performance cars. The engine should run the way it was built to run, and most problems can be pinpointed with proper diagnostics and testing.

!
  • Tell us the historyWhat was replaced, by whom, and what changed after. It saves time and money.
  • We test, we don't guessFault memory, live data, compression, leak-down, smoke and pressure tests.
  • You see every readingStand with us while we work. We explain each result as we go.
  • A straight verdictRepair, replace the engine, or sell. With real costs for each option.

01 · How we work

Diagnose. Prove it. Then repair.

Modern BMW engines need both hands-on experience and an understanding of the technology. Many weaknesses come from the factory and differ engine to engine. We test, research and confirm the cause before we recommend a single part, so you never pay for guesswork.

STEP 1

You book

Tell us the model, engine and symptoms. We confirm the visit and the price before we leave.

STEP 2

We come to you

Home, office or any safe parking in Nairobi and its environs. Your car stays where you are.

STEP 3

Full diagnosis

ISTA fault memory and live data, then physical tests: smoke, pressure, compression and leak-down where needed.

STEP 4

Written report

Root cause, what is urgent, what can wait, OEM part numbers and a clear quote. Explained in plain language.

STEP 5

Repair

On site for most jobs. Engine-out and gearbox work goes to our workshop.

STEP 6

Walkthrough

We clear codes, road test with you and show you what was replaced and why.

02 · Services

What we do

Engines and transmissions are our core. Everything we do starts with a proper diagnosis and ends with you understanding your car.

Most booked

Full diagnosis & report

Dealer-level scan plus physical testing. You get a written report and a quote you can take anywhere.

Buying used

Pre-purchase inspection

Before you pay for a used BMW, we check it at the seller's location.

  • Full ISTA fault history
  • Leaks, cooling, timing, gearbox
  • Walk away or negotiate advice
Engines & gearboxes

Repair & maintenance

Servicing to BMW spec, oil leaks, cooling systems, ignition, VANOS, timing, and ZF automatic gearbox service.

Planning

Builds & power advice

Tell us what you want from the car. We advise what is realistic, reliable and what it costs. We do not tune yet; we help you plan it properly.

Your choice

Parts guidance

Exact OEM part numbers and market prices. Order them yourself if you prefer, and we fit them.

Heavy jobs

Workshop

Engine swaps, rebuilds and gearbox removal are done at our workshop, with the same diagnose-first approach.

03 · Parts policy

Some parts have to be new and genuine.

We tell you this to your face. Cheap or used cooling parts, sensors and gaskets on a BMW usually mean you pay twice. If you want a reliable car, the critical parts must be brand-new OEM.

01

New OEM parts only, at market prices. No hidden mark-up.

02

You may order the parts yourself. We give you the exact part numbers.

03

We weigh repair cost against the car's value and tell you if it isn't worth it.

04

No parts are replaced until the test results point to them.

04 · Engines we know

Every engine has its own weak spots

These are the engines we see most often on Nairobi roads, and the known problems we check first.

Straight-six petrolM54

Cooling system, CCV, VANOS seals, oil leaks.

Straight-six petrolN52

Oil filter housing gasket, electric water pump, lifters.

Turbo sixN54 · N55

Injectors, high-pressure pump, wastegate, leaks.

Four-cylinder petrolN46

Oil consumption, Valvetronic, timing chain.

Turbo fourN20

Timing chain guides on early units, leaks, coils.

Modular petrolB38 · B48 · B58

Coolant leaks, ignition, servicing to spec.

DieselN47 · B47

Rear timing chain, EGR, DPF, swirl flaps.

V8N62

Valve stem seals, coolant pipes, alternator bracket seal.

TransmissionsZF 6HP · 8HP

Fluid service, adaptations, mechatronic sleeve leaks.

05 · Builds & power advice

Want more power? Get the plan before you buy parts.

We don't tune yet, but we advise you exactly how to reach your power goal. You get the parts list, where to source them, and the affordable route that doesn't compromise reliability.

Example goal

450 HP · N55

Found in the 335i, 435i, 535i, X3 35i, X4 35i and X5 35i. Stock output is 306 to 326 hp depending on the car. 450 hp is very doable with the right parts and fuel plan.

Kenyan pump fuel is 95 octane and ethanol blends are not sold at the pump. That changes the route, and we plan around it.

  1. Health check

    Tune a healthy engine only. Compression, leak-down, boost leak test, fault memory and fuel trims first.

  2. Turbo

    The stock turbo runs out well before 450 hp on 95 octane. We advise the right upgraded turbo for your car and budget.

  3. Fuel

    Upgraded low-pressure fuel pump. Port or methanol injection to make up for the lack of ethanol fuel.

  4. Heat

    Upgraded intercooler, colder plugs, cooling checked. Nairobi traffic is hard on a tuned engine.

  5. Breathing

    Downpipe and intake. We explain the warning-light and inspection side effects up front.

  6. Gearbox

    ZF 6HP or 8HP needs a gearbox tune for the extra torque. Manual cars need an uprated clutch.

  7. Tune & logs

    A custom map from a reputable tuner, checked with data logs. We help you read the logs.

N54 twin-turbo upgradesN20 stage 1B48 / B58 stage 1–2M54 reliability buildsDaily-safe power vs track builds

06 · Pricing (KES)

Clear prices, agreed before we arrive

Diagnostic and inspection prices below, with the call-out fee for your zone included in the totals. Repairs are quoted after diagnosis.

ServicePriceZone 1 totalZone 2 totalZone 3 total
Scan & consultISTA fault read, quick checks, verbal advice3,5005,0006,0007,500
Full diagnosis & written reportISTA full test, live data, physical tests, written report and quote. 50% credited if we do the repair.7,5009,00010,00011,500
Full diagnosis, V8 / M / complex electricalN62, S-engines, multiple-fault cars10,00011,50012,50014,000
Pre-purchase · 1 & 3 Series, X1Includes written report9,50011,00012,00013,500
Pre-purchase · 5 Series, X3, X412,00013,50014,50016,000
Pre-purchase · X5, X6, 7 Series, M15,00016,50017,50019,000
Build & power consultationOne session, in person or by call5,000–––

Prices are approximate and confirmed when you book. Zone 4 totals are quoted. Labour for repairs is quoted per job after diagnosis. Parts are charged at market price, or you buy them yourself.

07 · Areas we cover

Find your zone by road and estate

Nairobi is big, so our call-out fee depends on the bypass or main road you live on and how far out your estate is. Type your estate to see your zone.

Zone 1 · Core

1,500

CBD and the inner suburbs.

Zone 2 · Inner ring

2,500

Estates up to roughly 15 km out.

Zone 3 · Outer ring

4,000

Satellite towns and far estates.

Zone 4 (Thika, Juja, Athi River, Kitengela, Limuru, Kiserian and beyond): from KES 5,500, quoted per trip.

These call-out fees are approximate. They should never stop you from reaching out. Our priority is getting your car moving and the job done, so text us and we will work it out.

Zone 1Zone 2Zone 3Zone 4

Thika Superhighway

NgaraPanganiMuthaigaGarden EstateRoysambuKasaraniMwikiKahawa SukariKahawa WendaniGithuraiRuiruJujaThika

Northern Bypass

RundaRidgewaysRuakaTRM / Roysambu endKahawa WestKiambu Road junction

Eastern Bypass

Kasarani endEmbakasiUtawalaMihangoRuaiKamulu

Southern Bypass

Lang'ataBomasDagorettiKarenKikuyuGitaru

Mombasa Road

South BIndustrial AreaSouth CImara DaimaCity CabanasSyokimauMlolongoAthi RiverKitengela

Waiyaki Way

WestlandsMountain ViewLoreshoKangemiLower KabeteUthiruKinooLimuru

Ngong Road

KilimaniHurlinghamKileleshwaLavingtonUpper HillJamhuriKarenNgongKiserian

Lang'ata & Magadi Road

Nairobi WestLang'ataMadarakaRongai

Kiambu Road

Muthaiga NorthRidgewaysThindiguaKiambu Town

Limuru Road

ParklandsHighridgeGigiriRosslynTwo RiversBanana

Jogoo, Outer Ring & Kangundo Road

BuruburuDonholmUmojaPipelineTassiaFedhaKayoleKomarockJoska

08 · Case files

From our logbook

Jobs from our logbook, written up so you can see how we work.

Case 01 · Real job

The E60 that several garages couldn't fix

StallingOverheatingBattery drainMisfiresHard starts

The car had been through several garages and had finally stopped running. On the M54, the cooling system is the main killer. Our diagnosis showed the engine had overheated in the past and the cylinder head had already been worked on.

Rather than rebuild a damaged engine, we sourced a used M54 locally and tested it before buying: compression, cylinder wall inspection and a leak-down test. It passed, and we took its wiring harness too.

  • Fitted the tested engine and harness
  • Flushed the radiator and replaced every coolant hose
  • Tested the electric fan and all sensors

The car now drives like new. The only warning light left is from the owner's muffler delete.

Shared with the owner's permission.

Case 02 · N20

Is it the timing chain, or just a heat shield?

A rattle on a cold N20 makes owners fear the worst. Timing chain guide wear is a known weakness on early units, but a loose heat shield or a worn belt tensioner can sound similar. We check fault memory, listen with the car cold, and inspect before anything is opened. If it is the chain, we explain why it should be done now, because a failed guide can wreck the engine.

Case 03 · Pre-purchase

A clean-looking diesel X5 before the money moves

We meet you at the seller. We read the full fault history, check the DPF and EGR, test ZF 8HP shift quality on a road test, and look for oil and coolant leaks and worn suspension. You get a written report with an estimate of what the car will need in the next year, so you can walk away or negotiate with real numbers.

09 · Book

Tell us about your car

Fill this in and tap Send on WhatsApp. Your message opens in WhatsApp ready to send to us. We reply with the price and a time.

WhatsApp, text or call

0793 791 490

We prefer a text first. Tell us the car, the real issue and how urgent it is, and we reply fast. Calls are welcome too.

Email

bookings@pinpointmotorwerks.co.ke

Available Monday to Saturday. Have your car's VIN or logbook handy if you can; it helps us check the exact build.

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