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Clutch Fault Diagnostics
Typical Cost: Low
Mobile Repair? Yes
Typical Lead Time: 2 - 24 hours depending on mechanic availability
What is a clutch fault diagnostic?
The clutch components and set up are fairly simple, with two types of operation, cable operated or hydraulic operated and then there are the clutch components themselves. Traditionally this comprises of a clutch cover, the clutch friction plates, a release bearing* and the flywheel**.
*on vehicles that have an internal clutch slave cylinder (AKA Concentric Slave Cylinder or CSC), this usually replaces the release bearing.
**some vehicles, such as diesels and high powered petrol engined versions will have what is known as a dual mass flywheel as opposed to a single solid one. This unit, often referred to as a DMF for short, comprises of two layers with springs inbetween that reduce the vibration created by the engine.
Operating mechanism
With cable operated systems, if the cable snaps, the clutch pedal will simply drop to the floor or have zero resistance.
With a hydraulic operated mechanism, the components are a master cylinder, a pipe and a slave cylinder. Whilst this also sounds simple, it can often be difficult to ascertain which of the components is at fault.
Both
https://www.clickmechanic.com/help/articles/437/clutch-slave-cylinder-replacement
https://www.clickmechanic.com/help/articles/438/clutch-master-cylinder-replacement
Can help you in most instances, there are grey areas as well of course, so a diagnostic is the best course of action.
Clutch issues
Whilst there are some obvious signs of clutch wear such as the engine revving high, but you are not going any faster being the most common, other issues do occur. One big, but not obvious, indication of clutch failure is that you can get into gear with the engine not running, but then can’t when it is - that is new clutch time!
https://www.clickmechanic.com/help/articles/283/clutch-replacement
However, if you are unsure, then again, getting a trained technician to check the system over is the best course of action.
Rumbling noises?
If you have a rumbling noise that goes away when you press down on the clutch pedal whilst in neutral, the most likely cause is a dry clutch release bearing. Unfortunately, this will also require a new clutch as it forms part of the clutch kit.
Rattling when in neutral or when changing gear?
If you are getting a rattle, this could quite easily be the springs in the dual mass flywheel that are loose or broken. This is the worst case scenario as this will require both the clutch and the flywheel to be replaced
https://www.clickmechanic.com/help/articles/283/clutch-replacement
Not sure?
We appreciate that it can be a bit daunting to try and diagnose the faults, even if you are an experienced driver. Therefore, it is best to book in for a clutch fault diagnostic.
What happens during a clutch fault diagnostic?
This very much depends on the characteristics of the fault and the components the vehicle has been built with.
The technician will go through the clutch operating mechanism and then, if required, for final confirmation, they will test drive the vehicle. Once this is done, the mechanic will prepare a quotation for the repair work.
What does this diagnostic cover?
Unless otherwise stated, the quote for the diagnostic will cover;
- Coming to you
- Up to an hour with the vehicle
- Repairs that do not need parts or additional labour
- VAT (if applicable)
What to search for on the ClickMechanic site?
Diagnostic inspection
How much is a clutch fault diagnostic?
The cost of a clutch fault diagnostic depends on your car and your location.
Find out what you could save by visiting ClickMechanic
https://www.clickmechanic.com/bookings/car
FAQ’s
Can I supply my own parts?
No, we will not fit customer supplied parts unless they are a brand new item, purchased from a dealership with the receipt as proof of purchase. There is no flexibility over this due to insurance and warranty issues.