Engine Repair — Mercedes-Benz
Mercedes-Benz Engine Repair in Vantaa
Restore the Star's shine without technical worries.
Mercedes-Benz is synonymous with quality and safety, but it still demands expert care. We know the Mercedes trouble spots — from OM651 timing chains to V-engine oil leaks — and use Star Diagnosis (XENTRY)-compatible testers.
Engine families we service
Mercedes-Benz
Mercedes-Benz — known engine faults we repair
Every brand has weak spots. These are the Mercedes-Benz faults we know best — diagnosed, documented and repaired with OE-quality parts.
OM651 diesel rear-mounted timing chain
Symptom
Rattling sound on cold start, stretched chain shows in diagnostics, P0016/P0017 codes.
Our fix
The rear location is challenging — it takes experience. We replace the full chain kit including guides and tensioner.
OM642 V6 diesel oil cooler leak
Symptom
Oil dripping into the intake manifold, oil mixing with coolant, rising consumption.
Our fix
The oil cooler seals harden and leak into the engine V. We replace the seals and inspect the intake manifold at the same time.
Airmatic air suspension leak
Symptom
Car sags when parked, compressor runs constantly, fault code C1525.
Our fix
We replace leaking air springs individually — no need to overhaul the whole system. We use high-quality OE-equivalent parts.
7G-Tronic / 9G-Tronic transmission vibration
Symptom
Vibration at 40–80 km/h, jerky shifts, fault code for torque converter lock-up clutch.
Our fix
We perform a transmission oil + filter change and reset adaptations. In most cases this restores smooth operation without a costly rebuild.
Pricing — Mercedes-Benz
Mercedes-Benz engine jobs — starting prices
Market-average prices for Mercedes-Benz vehicles in Finland. Final price depends on engine model and parts availability — we always give you a fixed quote before any work starts.
from 1089 €
Mercedes-Benz
Engine Replacement
Replacing a faulty engine with a new or reconditioned unit. Comprehensive work with warranty.
from 1251 €
Mercedes-Benz
Head Gasket Replacement
Replacing a worn or leaking head gasket. Prevents coolant mixing with engine oil.
from 995 €
Timing Chain Replacement
Replacing the timing chain, sprockets, and tensioners. Prevents serious engine damage.
from 995 €
Mercedes-Benz
Timing Belt Replacement
Replacing timing belt, tensioner pulley and water pump. Prevents costly engine damage.
from 990 €
Cylinder Head Replacement
Replacing a damaged cylinder head. Repairs damage caused by overheating.
from 990 €
Turbocharger Replacement
Replacing a faulty turbocharger. Restores engine power and performance.
from 947 €
Turbocharger Service
Servicing and inspecting the turbocharger. Extends turbo lifespan and maintains performance.
from 847 €
Crankshaft Replacement
Replacing a faulty crankshaft. Complex engine repair work carried out professionally.
from 590 €
Oil Pump Replacement
Replacing a faulty oil pump. Ensures adequate oil pressure and engine lubrication.
from 356 €
Mercedes-Benz
Water Pump Replacement
Replacing a faulty water pump. Ensures proper coolant circulation and optimal engine temperature.
from 720 €
DPF Replacement
Replacing or cleaning the diesel particulate filter (DPF). Clears fault codes and restores performance.
from 400 €
Mercedes-Benz
DPF Cleaning (Particulate Filter)
A mechanical DPF clean restores filter flow to near-new condition without the cost of replacing the part.
from 546 €
Mercedes-Benz
EGR Valve Replacement
Replacing or cleaning the EGR valve. Improves engine performance and reduces emissions.
from 290 €
Intake Manifold Cleaning
Cleaning a clogged intake manifold. Improves engine breathing and performance.
from 180 €
Spark Plug Replacement
Replacing spark plugs according to manufacturer schedule. Improves engine running and reduces fuel consumption.
from 238 €
Mercedes-Benz
Glow Plug Replacement
Replacing diesel engine glow plugs. Ensures reliable cold-weather starting.
Diagnostics
How we diagnose Mercedes-Benz engine faults
First we isolate the root cause, then we choose the repair. That avoids unnecessary parts and makes the estimate reliable.
Brand-specific fault-code and live-data check
We start with diagnostics matched to OM651 (2.1 Diesel), OM642 (3.0 V6 Diesel), M271 (1.8 Kompressor), M272/M273 engines. Fault codes and live data are compared against the symptom so we separate an electrical issue from mechanical damage before ordering parts.
Compression, leak-down and pressure tests
If the symptom points to a fault such as om651 diesel rear-mounted timing chain, we measure compression, leak-down and coolant or boost pressure. That confirms whether the fault is in the head, timing system, piston rings or an ancillary component.
Endoscope and visual inspection
When needed, we inspect the cylinders with an endoscope, check leaks, carbon build-up and crankcase ventilation, then document the findings before you approve the repair.
Repair scope
Mercedes-Benz engine repair from small faults to full rebuilds
Timing system and valve-train repairs
We repair faults such as om642 v6 diesel oil cooler leak by replacing chains, belts, tensioners, guides and required seals as one controlled package.
Oil consumption, smoke and compression repairs
When the fault is in piston rings, valve-stem seals or the head gasket, the repair follows the root cause. We do not mask symptoms with additives; worn parts are repaired or renewed.
Ancillaries, turbochargers and emissions systems
We also diagnose faults such as airmatic air suspension leak, EGR, DPF, water pump, turbo and fuel-system issues before recommending an unnecessarily large engine repair.
Repair or replacement engine
Repair is often safer than an unknown replacement engine
A repaired engine is known inside out
A used replacement engine can carry the same model-specific fault as the failed one. In a repair, wear parts, seals and risk points are inspected and documented.
Lower risk when the damage is scoped correctly
After diagnosis we compare repair, partial repair and replacement-engine costs. If an engine swap is the better route, we say so directly.
Warranty on labour and installed parts
The repair uses OE-quality parts and a written estimate. You get a clear repair scope, not just an unknown used component.
Price and scope
Mercedes-Benz engine repair pricing depends on diagnosis
The starting price is a baseline, not a guess
A full engine rebuild starts from EUR 1,999 on common four-cylinder engines. The final price depends on engine code, damage scope and parts availability.
Individual jobs are priced separately
If a full rebuild is not needed, the cards below show typical engine jobs such as timing belt, head gasket, EGR, turbo and water pump work.
Work starts only after approval
After diagnosis you receive a written estimate. We start only once scope, price and schedule are clear to you.
Mercedes-Benz
See the full Mercedes-Benz service pricing
From oil changes to timing belts — every Mercedes-Benz service package with transparent pricing and a 24-month warranty.
FAQ
Mercedes-Benz engine repair — frequently asked
Do you use Mercedes-Benz Star Diagnosis?
Yes. We have main-dealer-level XENTRY/Star Diagnosis-compatible equipment for all coding and SCN operations.
Will my car's warranty stay valid when serviced with you?
Yes. We follow the Mercedes service programme and register the service in the Digital Service Book when required.
Can you service AMG models?
Yes. AMG engines (M156, M157, M177, M178) require precise knowledge of torques and firing order — we have it.
Engine Repair
Suspect an engine fault? Book a diagnostic visit.
We can usually take your car in the same week. You'll get a written estimate — we only go ahead if you approve.
Popular Services