How much does a starter motor replacement cost?
A starter motor replacement typically costs £180 to £350 fitted at an independent garage on a small or mid-sized petrol car. A larger or diesel engine where the starter is buried behind other components is more like £300 to £550, and a premium or German marque can run from £400 to £900. Roughly half the bill is labour, because the job usually takes one to three hours and occasionally four. Before you agree to any of it, get the garage to confirm the starter motor is actually the fault. A flat battery, a corroded earth strap or a failed solenoid can all produce the same click or silence when you turn the key, and two of those three are far cheaper to put right.
A starter motor is one of those parts nobody thinks about until the morning it does nothing. You turn the key, you get a click or silence, and within an hour you are being quoted somewhere between £180 and £900 depending on what you drive and who you ask. The spread is enormous, and it is not because garages are picking numbers out of the air. It is because two things move independently: how much the part costs, and how buried it is in your engine bay.
There is also a third thing, and it is the one that costs drivers the most money. A surprising share of cars that arrive with a suspected starter motor fault do not have one.
What a starter motor replacement costs in the UK
For a small or mid-sized petrol car at a decent independent garage, £180 to £350 fitted is the range most people land in. Move up to a larger engine, a diesel, or any layout where the starter motor sits under the inlet manifold or behind a heat shield, and £300 to £550 becomes normal. Premium and German marques commonly run £400 to £900, partly on parts and partly because the access is worse.
Those are typical UK garage prices rather than a set rate. There is no cap on repair pricing the way there is on the MOT test fee, which is capped by law, so the only real protection you have is comparing two written quotes. Our guide on how much an MOT costs explains where that cap does and does not apply.
Why the price varies so much
Break a quote in half and you can usually see exactly what you are paying for.
The part. An aftermarket starter motor for a common car is often only £70 to £200. A genuine part for a premium model can be £300 to £600 on its own. A reconditioned unit from a specialist rebuilder usually sits below a new aftermarket one.
The labour. Independent garages typically charge somewhere between £40 and £90 an hour depending on where in the country you are, and a main dealer is often close to double that. The job itself runs from about an hour on a simple engine to three or four hours where half the top of the engine has to come off first.
That second figure is why the same fault produces such different bills. Nobody is charging you more for a harder car out of spite. They are charging you for the two extra hours it takes to reach the bolts.
New, reconditioned or repaired
There are three ways to buy this part, and garages do not always volunteer which one they have quoted.
New genuine
The manufacturer’s own part, bought through a dealer. The most expensive route, and rarely necessary on an older car unless nothing else is available yet.
New aftermarket
Made by an independent parts manufacturer to fit your car. On mainstream models this is what most independent garages fit, and quality from the established brands is generally good. This is the default assumption behind the price ranges above.
Reconditioned
Your type of unit, stripped, rebuilt with new brushes, bearings and solenoid contacts, and tested. Typically £50 to £200 cheaper than new, and normally sold with its own warranty. On older cars and on models where the new part is scarce, this is often the smartest option rather than the cheap one.
Simply asking "is that price for a new genuine, a new aftermarket or a reconditioned unit?" can move a quote by two hundred pounds, and it is a completely reasonable question.
Is it actually the starter motor?
This is the part of the article worth reading twice, because it is where the real money is.
From the driver’s seat, a flat battery, a bad earth connection, a failed solenoid and a dead starter motor all produce roughly the same experience: you turn the key and the car does not start. Three of those four are cheaper to fix than the fourth, and one of them costs almost nothing.
The distinction matters because a starter motor is a bolt-on part. If a garage swaps it without testing first, and the fault was a corroded earth strap, you have paid a few hundred pounds and the car still will not start reliably.
The checks that tell you which one it is
You can narrow this down yourself in a couple of minutes before you ring anyone.
Watch the dashboard lights as you turn the key. If they dim heavily or the engine turns over slowly and reluctantly, that points at the battery or its connections. If they stay bright and steady and you get a single sharp click or nothing at all, the starter side becomes much more likely.
Listen to the click. A single loud clunk usually means the solenoid is engaging but the motor is not turning. Rapid machine-gun clicking almost always means low voltage, which is a battery or connection problem rather than the motor.
Check the terminals. Battery terminals should be clean and tight enough that you cannot twist them by hand. Furry white or green corrosion on a terminal is a genuine cause of no-start, and cleaning it is free.
Note whether it is cold-related. Problems that are worse first thing on a cold morning and fine by lunchtime lean towards the battery. Problems that appear at random regardless of temperature lean towards the starter.
See whether a jump start fixes it properly. If jump leads get you going and the car then behaves for days, the battery or charging system was the issue. Our guides on why a car will not start and how to jump start a car safely go through this in more detail.
None of this replaces a proper test. A garage will put a load tester on the battery and do a voltage drop check across the starter circuit, which settles the question in minutes. Ask for that to be done and the result explained before any part is ordered. A short diagnostic check is always cheaper than replacing a working component.
Signs your starter motor is on the way out
Starter motors rarely die without warning. The usual sequence is weeks or months of small hints.
A single loud click with no crank. Intermittent starting, where it fires perfectly nine times and then refuses on the tenth. A grinding or whirring noise as it engages, which normally means the drive gear is not meshing properly with the flywheel. A brief puff of hot electrical smell after a long crank. Or the starter continuing to spin for a moment after the engine has caught.
The grinding one is worth acting on quickly. A starter drive that is chewing the flywheel ring gear turns a £250 job into a gearbox-out repair, which is in a completely different price bracket. If yours is grinding, stop using it and get the car looked at.
What the labour actually involves
On a straightforward engine, the mechanic disconnects the battery, raises the car, unbolts a heat shield, disconnects two cables, removes two or three bolts and lifts the starter out. Under an hour of actual work.
On a lot of modern transverse engines, the starter sits in the valley between the engine and the bulkhead, underneath the inlet manifold. Reaching it means draining coolant, removing the manifold, replacing its gaskets on reassembly and re-checking everything afterwards. Three hours plus, and a small parts bill for the gaskets on top.
If a quote seems high, the fair question is not "why is your labour rate so high" but "how many hours have you allowed and what has to come off first?" A good garage will tell you straight away.
Main dealer, independent or mobile mechanic
For an out-of-warranty car this is a mechanical job rather than a diagnostic one, and a competent independent garage does it routinely for meaningfully less than a franchised dealer. A dealer earns its premium when the car is still under manufacturer warranty, when the model is too new for aftermarket parts, or when the no-start turns out to be an immobiliser or software fault needing manufacturer diagnostic access.
A mobile mechanic can be a good fit where the car will not start at all and would otherwise need recovering, but only if the starter is accessible without a ramp. On a manifold-off job most will decline, and rightly so. Our comparisons of main dealers and independent garages and of mobile mechanics and garages set out when each one makes sense.
Is the starter motor checked in an MOT?
No, and this catches people out. The MOT inspection manual’s section on lamps, reflectors and electrical equipment covers visible wiring and the battery, where being insecure in its carrier or leaking is a recorded defect. There is no test of whether the engine starts reliably, and no check of the starter motor at all.
So a fresh MOT pass tells you nothing about whether your car will start next Tuesday. Starting reliability belongs to servicing and repair, not to the annual test. If you want the difference spelled out, our guide on the MOT compared with a service covers what each one is actually for, and what is checked in an MOT test lists the full inspection.
Making sure the quote is fair
Repair pricing is not regulated, but it is not lawless either. Under the Consumer Rights Act 2015, a service must be carried out with reasonable care and skill, and where no price was agreed in advance you only have to pay a reasonable price. If the work is not done properly, you are entitled to have it put right at the trader’s cost, or to a price reduction where a repeat repair is not practical.
In practice, four questions do most of the work:
What testing confirmed the starter motor is the fault? Is the quote for a new genuine, new aftermarket or reconditioned part? How many labour hours are included, and at what rate? And what is the warranty on the part and on your labour?
Then ask for it in writing, and say clearly that no extra work is to be carried out without your approval. Garages accredited under the Motor Ombudsman Service and Repair Code already commit to open pricing, invoices that match the quote, and no additional work without prior agreement. Our guides on questions to ask a garage before booking and the signs a garage is overcharging you go further on this.
How to keep the bill down
Get the diagnosis confirmed before any part is ordered. Ask about a reconditioned unit, especially on an older car. Get two written quotes, because the labour hours allowed can differ more than the parts price. Do not ignore a grinding starter, since flywheel damage is the expensive outcome. And keep the battery and its terminals in good order, because a tired battery makes the starter work far harder than it should and shortens its life. The Highway Code’s guidance on vehicle maintenance is a reasonable baseline for the routine checks that prevent this kind of failure.
The bottom line
Expect £180 to £350 fitted on a mainstream car, £300 to £550 on a bigger or more awkward engine, and £400 to £900 on a premium marque. Half of that is labour, and the labour is set by how buried the part is rather than by anything you can negotiate. The one place you have real control is making sure the starter motor is genuinely the fault before it is replaced, because a battery, an earth strap or a solenoid can produce identical symptoms for a fraction of the price.
When you are ready, you can compare local garages near you, see their ratings, services and opening hours, and send a booking request in about a minute. You pay the garage directly and there is no booking fee.
Key takeaways
- Budget £180 to £350 fitted on a mainstream car, £300 to £550 on a bigger or diesel engine, and £400 to £900 on a premium marque.
- Labour is usually half the bill or more. The part itself is often only £70 to £200 for a common car.
- The most common way to overpay is to replace a starter motor that was never broken. A flat battery, a bad earth or a failed solenoid all feel identical from the driver’s seat.
- A reconditioned unit from a reputable rebuilder typically saves £50 to £200 and normally carries its own warranty.
- The starter motor is not an MOT item, so a pass tells you nothing about whether your car will start next week.
- Ask for a written quote that separates parts from labour, and agree that no extra work happens without your say so.
Frequently asked questions
How much does it cost to replace a starter motor in the UK?
On a small or mid-sized petrol car at an independent garage, £180 to £350 fitted is the usual range. A larger engine, a diesel, or any car where the starter motor sits underneath the inlet manifold or behind the exhaust is more like £300 to £550, because the labour goes up sharply. Premium and German marques commonly land between £400 and £900. A main dealer using a genuine part will typically sit 30 to 50 per cent above an independent for the same job. Those figures are typical UK garage pricing rather than a fixed rate, so it is always worth getting two quotes.
How much is the starter motor part on its own?
For a common car such as a Fiesta, Corsa, Golf or Astra, an aftermarket starter motor is usually £70 to £200. A reconditioned unit from a specialist rebuilder often comes in below a new aftermarket one and normally carries its own warranty. Genuine manufacturer parts for premium cars can be £300 to £600 on their own. If a quote looks high, ask which of the three the garage has priced, because that single choice can move the total by a couple of hundred pounds.
How long does it take to replace a starter motor?
One to three hours is typical, and awkward installations can reach four. On many older or simpler engines the starter is bolted to the bellhousing in plain sight and the job is genuinely quick. On a lot of modern engines it is underneath the inlet manifold, behind a heat shield or only reachable from below with the car on a ramp, and the mechanic has to remove several other parts to get at it. That is the single biggest reason two cars with the same symptom get very different quotes.
Is it the starter motor or the battery?
This is the question worth answering before you spend anything. A weak battery and a failed starter motor both leave you turning the key to nothing much. The useful difference is what the rest of the car does. If the dashboard lights dim heavily, the engine turns over slowly, and everything gets worse in cold weather, suspect the battery. If the lights stay strong and steady, the radio works normally, and you get a single loud click or complete silence, the starter side becomes far more likely. A garage can settle it in minutes with a battery test and a voltage drop check.
Is it the starter motor or the alternator?
They fail at opposite ends of the drive. The starter motor turns the engine over so it can fire. The alternator recharges the battery once the engine is running. So a starter fault shows up when you try to set off and a failing alternator usually shows up while you are driving, with a battery warning light, dimming headlights or the car dying on the move. A car with a dead alternator will often start fine from a jump and then fail again later, because the battery is never being topped up. Our guides on the cost of a new car battery and the cost of an alternator replacement cover those two jobs.
Can a starter motor be repaired instead of replaced?
Sometimes, and it can be worth asking. Starter motors fail in a few predictable ways, and worn brushes, a tired solenoid or a sticking Bendix drive can often be rebuilt by a specialist for less than a new unit. Many garages no longer do this in house, because on a modern car most of the cost is the labour to get the starter out and back in rather than the part, so a rebuild saves less than it used to. On an older or classic car where the part is scarce or expensive, a rebuild is often the sensible route.
Can I drive with a failing starter motor?
You can usually still drive, because once the engine is running the starter motor plays no part. The risk is not being able to restart. A starter motor that is intermittent today will strand you somewhere eventually, and it tends to pick the least convenient moment, which is why people often end up paying for recovery on top of the repair. If yours is already hesitating, get it booked in rather than waiting for it to stop completely.
Why does my car start sometimes and not others?
Intermittent starting is the classic signature of a starter motor on its way out, particularly a worn solenoid or worn brushes, because the contact only fails in certain positions. It is not the only cause though. A loose or corroded battery terminal, a poor earth strap between the engine and the body, or an immobiliser fault can all be intermittent too. The cheap checks are worth doing first, and a garage will normally carry them out as part of diagnosing the fault.
Does an MOT check the starter motor?
No. The MOT inspection manual’s electrical section covers visible wiring and the battery’s security and condition, so a battery that is loose in its carrier or leaking is a defect, but there is no test of whether the engine starts reliably. A car can pass its MOT in the morning and refuse to start that afternoon without either result being wrong. Treat a starting problem as a servicing and repair job, not something the annual test will catch for you.
Will a new starter motor come with a warranty?
Almost always. Aftermarket and reconditioned units are usually sold with a warranty of one to two years, and the garage’s own labour should be covered too. Ask for the warranty terms in writing on the invoice, along with the make of the part fitted. If the same fault reappears inside that period, the Consumer Rights Act 2015 gives you the right to have the work put right at the trader’s cost, so keeping the paperwork matters.
Is a main dealer worth the extra for this job?
For a straightforward starter motor replacement on an out-of-warranty car, usually not. The job is mechanical rather than diagnostic, a competent independent does it every week, and the parts are widely available. Where a dealer earns its money is on a car still under manufacturer warranty, on a very new model where the part is not yet available aftermarket, or where the starting fault turns out to be a software or immobiliser issue that needs manufacturer diagnostic access. Our guide comparing main dealers and independent garages goes through when each is the better call.
How can I avoid being overcharged?
Ask for a written quote that separates the part from the labour, and ask how many hours have been allowed. Ask which type of part is being fitted, since new genuine, new aftermarket and reconditioned are three very different prices. Ask what testing was done to confirm the starter motor is the fault, because that is the answer that protects you from replacing a working part. Then agree in writing that no additional work is carried out without your approval. Garages signed up to the Motor Ombudsman Service and Repair Code commit to exactly that.
Sources
- Lamps, reflectors and electrical equipment: MOT inspection manual (GOV.UK)
- Vehicle maintenance, safety and security (The Highway Code, GOV.UK)
- Consumer Rights Act 2015, statutory rights under a services contract (legislation.gov.uk)
- Consumer Rights Act 2015, remedies when service rights are not met (legislation.gov.uk)
- Service and Repair Code (The Motor Ombudsman)