Mercedes Garage
Mercedes Engine Bearing Replacement
Expert bottom-end bearing replacement for Mercedes petrol and diesel engines. Performed as part of a full engine rebuild with OEM-spec parts and precision assembly.
15+ yrs
Mercedes specialists
1,800+
engines rebuilt
12 mo
unlimited-mileage warranty
What Engine Bearing Replacement Involves
Engine bearing replacement is a bottom-end rebuild operation. We remove the engine from the vehicle, mount it on a stand, and carry out the following steps:
- Access & Disassembly — Drain fluids, remove all external components (manifolds, turbochargers, accessories), and strip the engine to access the crankshaft.
- Crankshaft Removal — Remove the oil pan and crankshaft to expose the main bearing shells and connecting rod bearings.
- Bearing Replacement — Fit new OEM-spec main and connecting rod bearing shells, using colour-coded matching to the crankshaft and block. Replace thrust washers where fitted.
- Clearance Measurement — Verify bearing clearances with Plastigage or dial bore gauges to ensure they meet factory specifications.
- Reassembly — Install new torque-to-yield bolts, follow precise torque sequences and angles, and replace all gaskets and seals.
- Testing — Run the engine on a test stand or in-vehicle to verify oil pressure, temperature, and overall performance before handover.
We use genuine Mercedes parts and OE-spec consumables throughout. Every rebuild includes a full inspection of all bottom-end components.
Starting Price for Engine Rebuilds (Includes Bearing Replacement)
Bearing replacement is always performed as part of a full engine rebuild. Our rebuild pricing starts from:
Prices are indicative and subject to inspection. View pricing disclaimer →
Inside our workshop
Mercedes Engine Bearing Replacement
Our Bearing Replacement Work
All images are staged on our premises using real workshop photography as the base. Actual completed job photography will replace these placeholders as they become available.
Our Bearing Replacement Process
- 01
Inspection & Quotation
We inspect your engine and provide a fixed-price quote for the full rebuild, including bearing replacement.
- 02
Engine Removal
We carefully remove the engine from the vehicle, draining fluids and disconnecting all ancillaries.
- 03
Strip & Measure
The engine is fully stripped; we measure all bearing journals and select the correct bearing shells.
- 04
Bearing Installation
New OEM-spec shells are fitted with new TTY bolts, following torque sequences and angle specifications.
- 05
Reassembly & Testing
We reassemble the engine with new gaskets and seals, then test run it to confirm oil pressure and performance.
- 06
Refit & Handover
The engine is refitted, fluids replenished, and the vehicle is road-tested before you collect it.
Why Choose Us for Your Mercedes Engine Work
- 12-month unlimited-mileage warranty on all rebuilds – we stand behind our work.
- Established in 2009 – specialist Mercedes workshop with a proven track record.
- We use genuine OEM parts and follow factory torque and clearance specifications.
- Nationwide recovery available from £70 – we can bring your car to us.
- Quote turnaround under 30 minutes during working hours.
- Rebuilds completed in 3-5 working days from arrival at our workshop.
Recent Bearing Replacement Jobs
Real completed jobs will be shown here once photography is available. These are staged representations on our premises.
How It Works
- 01
Contact Us
Call, email, or fill in our quote form. We'll ask for your vehicle details and arrange an inspection.
- 02
Vehicle Inspection
We inspect your engine, diagnose any issues, and give you a fixed-price quote for the rebuild.
- 03
Work Commences
Once you approve the quote, we schedule your rebuild and keep you updated throughout.
- 04
Collection & Warranty
We test your vehicle, hand it back to you, and provide a 12-month unlimited-mileage warranty.
Related Services
- Mercedes Engine Rebuild – full bottom-end and top-end rebuilds
- Mercedes Engine Replacement – supply and fit
- Mercedes Diesel Timing Chain & Injector Repair
- Mercedes AMG V8 Valve Seal & Coolant Repair
- Mercedes 4-Cylinder Timing Chain Repair
- Mercedes Engine Inspection & Assessment
Explore all our engine services →
Frequently Asked Questions
Is engine bearing replacement always part of a full rebuild?+
Yes. Bearings cannot be replaced in isolation on Mercedes engines without fully stripping the bottom end. We always perform a complete rebuild, replacing bearings, seals, gaskets, and any other worn components.
How do you ensure the correct bearing clearances?+
We measure crankshaft journals with precision micrometers and dial bore gauges. We then select the correct colour-coded bearing shells from the Mercedes-supplied set and verify clearance with Plastigage.
Do you reuse the old bolts?+
Never. All main bearing cap and connecting rod bolts are torque-to-yield and must be replaced with new ones. We use genuine Mercedes bolts every time.
How long does the work take?+
Typically, the engine is removed, rebuilt, and refitted within 3-5 working days, depending on the model and any additional work required.
Can you collect my vehicle?+
Yes. We offer nationwide recovery from £70. Most vehicles are collected within a few hours of booking.