Dual Mass Flywheel (DMF) Replacement in Hyderabad
Genuine LuK · Sachs · Valeo DMF + clutch kit · BMW · Mercedes · Audi · VW · Skoda · Land Rover · Fortuner diesel
Metre Per Second is the leading dual mass flywheel (DMF) specialist in Hyderabad. A failing DMF is one of the most expensive driveline jobs on a modern diesel — and unfortunately one of the most commonly mis-diagnosed and under-quoted by general workshops. A DMF contains two flywheel masses connected by an arc spring damper that absorbs torsional vibration from the high-compression diesel engine. When the springs fatigue, the damper grease dries out, or the secondary mass develops excess play, you get the classic symptoms: rattle on idle that disappears when you press the clutch, shudder when pulling away from a stop, and a "diesel knock" rattle on engine shutdown. We have replaced 600+ dual mass flywheels on BMW (320d, 520d, X3, X5), Mercedes (C-Class, E-Class, GLE, GLS diesel), Audi (A4, A6, Q5, Q7 TDI), Volkswagen / Skoda (Passat, Octavia, Superb, Kodiaq TDI), Land Rover / Range Rover (TDV6, SDV6, Ingenium diesel), Toyota Fortuner / Hilux 2.8 GD, and Ford Endeavour 3.2. We always supply a complete genuine LuK, Sachs or Valeo DMF + clutch kit (DMF + clutch disc + pressure plate + release bearing + concentric slave cylinder where applicable) — never a single-mass conversion on cars where the manufacturer specifies a DMF, because that ruins NVH and damages the gearbox. Most jobs are completed in 1-2 working days with 1-year / 20,000 km warranty on parts and labour.
Common Dual Mass Flywheel Problems We Fix
Idle Rattle (Gearbox Rattle)
Loud metallic rattle from the bell housing area at idle that goes quiet when the clutch is pressed
Symptoms:
- Rattle on idle in neutral
- Rattle disappears when clutch pedal is pressed
- Worse when engine is warm and AC is on
Solution: Genuine OEM DMF + clutch kit replacement (LuK / Sachs / Valeo) with new release bearing
Pull-Away Shudder
Vehicle shudders or jerks when pulling away from a stop in 1st or reverse
Symptoms:
- Juddering when releasing clutch from standstill
- Worse on inclines or with passengers
- Shudder you can feel through the chassis
Solution: DMF damper has lost grease and free-play has gone out of spec — full DMF + clutch kit replacement is the only fix
Engine Shutdown Knock / Bang
Distinct knock or bang from the bell housing when you switch the engine off
Symptoms:
- Loud knock when key is turned off
- "Diesel rattle" on shutdown
- Symptom slowly worsens over months
Solution: Worn DMF arc springs / dampers — replace DMF and inspect starter ring gear teeth for chipping
Excess Free Play in Secondary Mass
Hand-rotation test shows secondary flywheel mass moving more than the manufacturer's spec
Symptoms:
- Confirmed only with gearbox out and DMF inspection
- Often combined with above symptoms
- Often missed by workshops that only look at the clutch disc
Solution: DMF replacement (cannot be repaired — it is a sealed unit). Always replace clutch + release bearing at the same time
Our Diagnostic & Repair Process
- Symptom & Mileage Review: Confirm classic DMF symptoms — idle rattle, pull-away shudder, shutdown knock — and rule out injector knock or AC compressor noise
- Stethoscope & Bell Housing Listen: Mechanic's stethoscope on bell housing to confirm noise source and isolate from accessory belt or injectors
- Gearbox Removal: Drop gearbox / transfer case to access flywheel — done on 4-post lift with proper transmission jack
- DMF Free-Play Measurement: Measure secondary mass rotational free-play, axial play and check for grease leaks against manufacturer service bulletin
- Install & Bed-In: Fit genuine DMF + clutch kit + release bearing, torque flywheel bolts to spec, refill gearbox oil, bed-in clutch on road test
Dual Mass Flywheel Services & Pricing
| Service | What's Included | Duration | Price Range (INR) |
|---|---|---|---|
| DMF + Clutch Kit Replacement (4-cyl Diesel) | Genuine LuK / Sachs DMF + clutch + pressure plate + release bearing on 4-cyl diesel (Octavia, Skoda, VW, Fortuner) | 1-2 days | ₹55,000 - ₹95,000 |
| DMF + Clutch Kit Replacement (6-cyl Diesel) | Full kit on 6-cyl diesel (BMW 530d, Mercedes E350d, Audi A6 TDI, Range Rover TDV6) | 1-2 days | ₹85,000 - ₹1,80,000 |
| DMF Inspection (Gearbox Already Out) | When the gearbox is already removed for another job — DMF inspection, free-play measurement, recommendation | 2 hours | ₹2,500 - ₹4,500 |
| Rear Main Seal & Pilot Bearing | Done at the same time as DMF replacement — strongly recommended on engines over 80,000 km | +2 hours | ₹3,500 - ₹8,500 |
All prices are 35–55% below authorised dealer rates. Written estimate before any work begins. 1-year / 20,000 km warranty on parts and labour.
Why Choose Metre Per Second for Dual Mass Flywheel
- Genuine LuK / Sachs / Valeo Only: We use only OEM dual mass flywheel + clutch kits — never aftermarket "single-mass conversions" on DMF-spec cars
- Complete Kit Replacement: DMF, clutch disc, pressure plate and release bearing always replaced together — this is non-negotiable for a long-life repair
- Proper Bell Housing Inspection: While the gearbox is out we inspect the rear main seal, pilot bearing, starter ring gear and CSC / slave cylinder
- 1-Year Warranty: Every DMF + clutch job is covered by 1-year / 20,000 km warranty on parts and labour
Technical Specifications
- DMF Brands Stocked
- LuK (OE supplier), Sachs (ZF), Valeo, Borg & Beck
- Vehicles Serviced Weekly
- BMW 320d/520d, Mercedes C220d/E350d, Audi A4/A6 TDI, VW/Skoda 2.0 TDI, Fortuner / Endeavour, Range Rover TDV6
- Free-Play Spec Reference
- LuK & Sachs technical bulletins — checked against measured free-play before approving "DMF OK"
- Gearbox Oil Refill
- OEM-spec only (BMW MTF, Mercedes 235.10, VW G055/G070, Toyota MT-1)
Frequently Asked Questions — Dual Mass Flywheel in Hyderabad
Can a DMF be repaired or rebuilt?
No. Dual mass flywheels are sealed, grease-packed units. Once the arc springs fatigue or the grease dries out, the unit must be replaced as a whole. There are no rebuild kits and no "DMF welding" repair — anyone who offers that is taking shortcuts.
Should I convert to a single-mass flywheel to save money?
On most modern diesels — no. The DMF is part of the engine's torsional damping system. A single-mass conversion typically causes harsh NVH, increased gearbox shock load, and can damage the input shaft and synchronisers within 30,000-50,000 km. We only consider single-mass on track / motorsport vehicles.
How long does a DMF + clutch job take?
Most 4-cyl diesels (Skoda Octavia, VW, Fortuner) take 1 working day. RWD luxury cars (BMW 5-Series, Mercedes E-Class, Range Rover) typically take 1.5-2 days because of the longer drivetrain and more complex bell housing access.
How long does a new DMF last?
A genuine LuK / Sachs DMF should last 120,000-180,000 km when paired with smooth driving. Riding the clutch, lugging the engine in too-high a gear, and frequent stop-go traffic with poor clutch technique are the main causes of early DMF failure.
Customer Reviews — Dual Mass Flywheel (DMF) Replacement in Hyderabad
Idle rattle and shudder pulling away. BMW dealer quoted ₹2.6 lakh for "engine + gearbox repair" without diagnosing properly. MPS confirmed it was the DMF, replaced with genuine LuK kit + release bearing for ₹1.35 lakh, all genuine parts. Smooth as silk now.
Classic shutdown knock and pull-away judder. Metre Per Second replaced the DMF + clutch + release bearing in one day with genuine Sachs kit for ₹62,000. No more rattles. Honest, transparent quote — they showed me the worn DMF after removal.
Idle rattle that everyone said was injector knock. MPS correctly diagnosed it as a worn DMF, replaced with LuK kit. Fortuner is silky quiet at idle now. Best diesel mechanics in Hyderabad.
Shutdown bang from the bell housing was getting embarrassing. MPS dropped the auto-box, replaced the DMF and torque converter flexplate, refilled with genuine LR fluids. Saved over ₹1.8 lakh vs the LR dealer quote.
Service Areas in Hyderabad
We provide dual mass flywheel service with free pickup and drop across:
- Gajularamaram
- KPHB
- Kukatpally
- Miyapur
- Hitech City
- Gachibowli
- Madhapur
- Kondapur
- Jubilee Hills
- Banjara Hills
- Secunderabad
- Manikonda
- Narsingi
- Kokapet
- Financial District
Related Services
Book Dual Mass Flywheel (DMF) Replacement in Hyderabad — Metre Per Second
Call +91 8555824915 or WhatsApp +91 8555824915 for a free quote.
Workshop: Plot No. M-8, Mahadevpuram, KPHB Road, Gajularamaram, Hyderabad, Telangana 500055