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335i

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Question
Clicking sound when turning over.
It sounds like you may have a weak battery (as indicated by the key not being recognized by the vehicle when in range) or potentially a faulty starter solenoid. The starter solenoid is located on the starter and has internal...
Question
I have a 2008 BMW 335i battery died. I have been told I need to have it mated or registered to my electrical system to prevent ove
Hi there. This video is a pretty good tutorial on removing and replacing the battery on your 335i. You may have to reset the electrics on the vehicle, which this video shows how to accomplish this step. There is no...
Question
Just drained/replaced coolant and now the temp gauge doesn't work
Some vehicles have air purge points that must be opened when coolant is re-filled. If you don't open the purge points to force the air out as you add coolant in, air can get trapped in cooling passageways and that...
Question
2007 bmw 335i serpentine belt keeps breaking
Hi There, It sounds like you may have a tensioner pulley that may have a worn out bearing that may be putting additional stress on the belt as it turns. The other possibility may be that the tensioner pulley may...
Question
Car hiccups or slight jerks at steady rpm
Ignition failures are more common on your car than fuel injector failures, and the mileage would be about right for coil failures. It takes several subsequent misfires for you to be able to notice it on the road, so if...
Question
Intermittent random faults showing up on dash and I drive system. One at a time. Mainly transmission error and lighting system err
Hello. When it comes to power issues while driving, it is typically related to the charging system in some way. A miscommunication with the battery would effect the performance. Before getting too technical, start with the simple stuff. Check the...
Question
Strange rattling/tapping noise at low rpm when accelerating lightly
Hi...the noise can be diagnosed by taking all the belt driven accessories out of the picture by momentarily running the engine without the serpentine belt. If the noise remains, then the search is focused on internal engine parts. If the...
Question
replacement of ac drier cap
The cap itself may be available from the dealer. If the purpose of the seal cap is simply to keep dust out, so long as the selected fastener has the identical thread (pitch and diameter) you can use a metal...
Question
I need my wastegates replaced. The turbos are good but the wastegates are rattling and car goes into limp mode @ high speeds.
Wastegate rattle is a common problem on your car. You can take the turbo's off and re-install them, but then you will need to send them to a turbo specialty shop to have the wastegates changed and the housings re-bushed....
Question
I had a shop from http://BMWmechanicBoca.Com tell me that I may need a battery registered for my BMW
Hello, thank you for writing in. Typically when you are prompted to register a new part or accessory, you are doing so for the warranty. This is a process of contacting the company and letting them know that you have...
Question
Is it hard I install disc brakes
Hi there. If you have never replaced the brakes on a BMW before, I would highly recommend letting a professional mobile mechanic come to your location and replacing the brake pads and rotors for you. BMW anti-lock brakes are very...
Question
Positive battery cable is corroded at junction point. Does the entire cable need to be replaced?
Hello, Depending on how severe the corrosion is and whether the corrosion has caused any damage to the cable itself, it may or may not need to be replaced. Corrosion can cause very minor damage and can be easily removed...
Question
Hello, i own a bmw 335i n55, AT, recently i replaced the sparkplugs and one coil. Since then i have the code P112f. When start up
This code indicates a manifold absolute pressure to throttle valve angle discrepancy. This means that there is some confusion between the mass airflow sensor, the throttle position sensor, and the manifold absolute pressure sensor. It is possible that one of...
Question
Dealer advised during brake fluid flush that fluid has congealed in tank. Tank needs to be replaced unless a way can be found to r
Brake fluid can congeal in vehicle braking systems but it is not common. The contaminants that cause this vary from moisture to system materials wearing off to adding mistaken fluids to the brake fluid, such as engine oil. The remedy...
Question
Spark plug covered in oil
Hi Daniel. Oil leaking into the spark plug wells is an indicator of a fairly serious problem that should be inspected and repaired immediately. It is almost always due to a failing gasket or O-ring but can also be the...
Question
Need an oil pan dropped or something else?
Hello there. Typically when this situation occurs, you will first drain the oil and change the filter before you remove the oil pan. You should recycle the used oil and check it for debris before properly disposing. You should also...
Question
Rough idle and shakes at stops
What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...
Question
How much would it cost to replace oil filter housing on my 2007 BMW 335i and replace both rear shock absorbers?
Hi there. When it is possible, we prefer to secure OEM components for all of our replacement part services. When there are situations where aftermarket replacement parts are the only option, we always verify that they are recommended by the...
Question
So my car overheated and turned off on the street i took it to a local shop my first thought was that the water pump had gone bad
Hello, thank you for writing in. The water pump is harder to test, so we start with the cooling system components that are easier to check without invasive inspections. The fans being one that is easy to watch turn on...
Question
My BMW 335i n54 coolant line hose o ring needed to replaced. I think coolant is leaking from there.
The best thing to do is get a coolant pressure test and hook it up to your radiator or reservoir and pressurize the system to 15 psi. If there is a leak, it will appear under a pressure. If you...

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