A failed turbo is usually a symptom, not the root cause — oil-feed problems, blockages or actuator faults are common culprits. We diagnose the cause first, then recon or replace the turbo and fix what killed it.
That's the difference between a repair that lasts and one that fails again in months.
Common symptoms
A failed turbo is a symptom, not the disease
Turbochargers spin at over 100,000rpm on a film of pressurised oil. They very rarely fail because they were simply worn out. Far more often something upstream caused it: a partially blocked oil feed pipe, contaminated or overdue oil, a clogged breather building crankcase pressure, or debris drawn in through a damaged intake. Fitting a new turbo without finding that cause is how people end up buying two turbos in six months.
The signs of turbo trouble
Loss of power or the car dropping into limp mode is the obvious one. A whining or siren-like whistle that rises with revs suggests bearing wear. Blue smoke means oil is getting past the seals into the exhaust; black smoke points to a fuelling or boost-control fault. Oil pooling in the intercooler pipework is another strong indicator. Excessive shaft play when checked by hand confirms it.
Recon or replace
Some turbos are economically rebuildable — the core is stripped, the shaft and bearings renewed, and the assembly balanced. Others, particularly variable-geometry units where the vane mechanism has seized with carbon, are more sensibly replaced. Which route is better depends on the specific unit and what's available, and we'll tell you honestly rather than defaulting to whichever is easier.
Fitting it so it survives
A replacement turbo needs the oil feed and return lines cleaned or renewed, the breather system checked, fresh oil and filter, and the intake and intercooler cleared of any oil left by the old unit. Variable-geometry actuators need calibrating. Skipping any of these is the usual reason a new turbo fails early — so they're part of the job, not optional extras.
How we do it, step by step
- 01
Diagnose the cause
Boost, fuelling and oil-supply checks to establish why the turbo failed, not just that it has.
- 02
Remove and inspect
The unit comes off and the shaft play, vanes and seals are assessed.
- 03
Recon or replace
We advise the more cost-effective route for your specific turbo and fit accordingly.
- 04
Clean the system
Oil feed and return, breather, intake and intercooler cleared of debris and old oil.
- 05
Calibrate and test
Actuator calibrated, fresh oil and filter, boost checked on road test.
What affects the price
- ›Whether the turbo can be reconditioned or needs replacing outright
- ›Fixed-geometry versus variable-geometry (VGT) units
- ›Access — some turbos require substantial strip-down to reach
- ›Whether the root cause (oil feed, breather, injectors) also needs work
Typical turnaround: 1–3 working days
Warranty: Turbo supply and fitting covered on parts and labour.
Rebuild, reconditioned or replacement — which is right?
The cheapest route depends on your engine. Here's how the three options compare — we'll advise honestly once we've seen it.
| Option | Typical price | Time | Best when |
|---|---|---|---|
| Engine rebuild | From £1,200 | 2–4 days | The block is sound and you want to keep your original engine |
| Reconditioned engine | From £900 | 2–5 days | Your engine is beyond economical repair |
| Engine replacement | On quote | 1–3 days | You need the fastest route back on the road |
Prices are indicative starting points. We confirm one fixed price before any work begins.
Frequently asked questions
Should I repair or replace a turbo?
It depends on the fault. We diagnose the cause first and advise the most cost-effective route — sometimes a recon, sometimes a replacement.
Why did my turbo fail?
Most commonly oil starvation, contamination, or a blocked breather. We find the cause so the new turbo doesn't fail the same way.
How long does it take?
Typically 1–3 working days.
Can a turbo be repaired or does it have to be replaced?
Some can be reconditioned — shaft and bearings renewed and the assembly rebalanced. Variable-geometry units with seized vanes are often better replaced. We advise per unit rather than by default.
Why did my turbo fail?
Most often oil starvation from a blocked feed pipe, contaminated or overdue oil, or crankcase pressure from a clogged breather. Finding that cause is part of the job.
What does blue smoke mean?
Usually oil passing the turbo seals into the exhaust. It's a strong indicator the turbo needs attention, though we test to confirm rather than assume.
Will a new turbo fix my limp mode?
Only if the turbo is the cause. Limp mode can equally come from boost leaks, sensor faults or actuator problems — which is why we diagnose before quoting parts.
Do I need an oil change with a new turbo?
Yes, always — fresh oil and filter, plus cleaning the feed and return lines. Fitting a turbo into dirty oil is the fastest way to kill it.