Q: C250 50k, just changed timing chain tensioner, still chatters for on second on cold start

asked by on

I question replacing entire chain, also I have heard two hoses feeding variable valve timing go bad as well. Not looking to waste the valves

My car has 50 miles.
My car has an automatic transmission.

Hello. For most vehicles it could actually be considered normal to hear a little bit of chattering when the vehicle is first started. This is due to the engine needing a brief period of time for the oiling system to pressurize and provide tension for the chain. If the chattering is excessive or loud then it may be possible that the chain could be stretched or worn due to wear. Replacing the timing chain is a relatively involved procedure, so I would recommend having a professional technician verify that the chain need to be replaced to avoid a potentially unnecessary repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. C250 50k, just changed timing chain tensioner, still chatters for on second on cold start

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: Q: How do you use the Window Lock?

Safety is important in your car, particularly if you have small children in the back seat. The Window Lock function allows you to disable the back window controls. When the lock is active, only the driver and front passenger can...

Q: My 2013 Mercedes benz c250 ac won't work, it blows hot air and the ac button light flashes red three times and then turns of

Hello. On this vehicle for it to be acting up like this it typically means that there is a programming issue with the HVAC unit. It is also possible that the system has a small leak if it has been...

Q: Q: Cooling fans not working

If your cooling fan is inoperative, I would start by having a mechanic check the fan for power. If the fan is getting twelve volts but does not work, the fan is faulty. If the fan is not getting battery...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...