Skip the auto shop - Our mechanics make house calls

Q: knocking sound from the back of the car

asked by on

hi when i slow m car down to stop i hear and feel a knocking and the same feeling when go to reverse

My car has 200000 miles.
My car has an automatic transmission.

A: Hello there, many faults will cause a knock...

Hello there, many faults will cause a knocking noise in your 2002 BMW 325i. The most common is the driveshaft, drive axles, differential gears, transmission mount, or the rear struts. A qualified Technicians such as one from YourMechanic will be able to inspect your vehicle, diagnose where your knocking noise is coming from and make any repairs required to resolve it.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Fan pully won't line up after doing new head gaskets

Hi there. You need to make sure the crankshaft pulley is put on all the way. The front crank pulley should be very close to the front timing cover. If it is on all the way, then you either have...

Q: What causes play in the steering?

There are mechanical components inside the steering system that do tend to wear over time and you may notice a little extra play over a period of time. Usually this feeling comes from worn inner or outer tie rods. The...

Q: Hard Starting 04 BMW X3

Hello there, many common faults will cause your 2004 BMW X3 to have a hard time starting. You have done great in diagnosis and replacing parts that will typically cause this condition. Common causes of a hard start are the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.