wiper blades working reverse

ANSWER : I suggest first inspecting the wiper crank arm assembly between the wiper linkage and the motor. It may have slipped out of position. If that is secure, then yes, it sounds like you need the wiper motor and module assembly. If you need help having this checked, a qualified technician from YourMechanic can inspect your wiper system and perform the needed repair.

ANSWER : The problem you are describing likely stems from an intermittent electrical fault in the wiper circuit. The windshield wiper system uses a small electric motor to move the wiper arms that you see on the windshield. That electric motor is controlled through a switch, relay, fuse, and wiring. One, or more, of those electrical components has failed although it is also possible that the mechanical arms are binding (seized, if the lubricant has dried out) thus causing the electric circuit to the motor to overload. Regardless of the underlying fault, if you request a non functioning wiper diagnostic/repair, the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

ANSWER : You can use a mild polish like a toothpaste that will clean the glass without scratching the glass. Use it with small circular motion to polish off the marks.

ANSWER : Hi – the sudden nature of this failure would suggest a fuse or other electrical link, but you have checked the obvious. Further diagnosis is needed to determine which component in the electrical power chain has failed – switch, electrical wiring, or the wiper motor itself. I would suggest an electrical component failure by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

ANSWER : You will have to replace the "wiper arm shaft" and/or wiper arm for the side which isn’t working. Both of these components have very small splines which interlock when the nut is tightened. A heavy snow or ice load can cause the splines to break down, or strip, rather than damage the electric motor. A certified technician from YourMechanic can replace the windshield wiper arm at your home or office.

ANSWER : The problem with your tach sounds like it may be within the mechanical workings of the tachometer itself. If the gears that moves the needle around start to wear, you may have a bouncing needle or it can stop in one place. While the vehicle is hooked to a scan tool, you can watch the engine rpm on the scanner and if that reads 500 rpm as well as on the dash and the engine is definitely spinning faster, the sensor may be at fault. The power door locks and wiper problem may be separate problems as they don’t share many circuits. A loose ground connection can cause this type of problem as well as failing command switches or the relays that control these components. Consider hiring an experienced technician like one from YourMechanic who can come by for a closer look at the faulted electrical circuits to see where this bug is.

ANSWER : Hello. We’ll be happy to help you. There are a few things that I recommend checking to discover why your lighting system is malfunctioning. The headlight dimmer switch should be checked. Along with the wiring harness above the right front tire behind the fender well cover. Also
the main fuse under the hood should be inspected because other people with your particular vehicle have had similar lighting issues if that fuse goes bad. It will be a great idea to check the rest of the fuses in that area too while checking the main fuse. Once the fuses are checked inside of the main fuse box then I would check the fuses inside of their interior fuse box. The interior fuse box should be located on the driver side of the dashboard near where your legs would be. If you need more assistance with repairing your vehicle please keep in mind that our organization provides Mobile Mechanics who can help you diagnose and repair your vehicle, all at competitive rates.

ANSWER : As unfortunate as it is, your vehicle would be considered flood damaged. Diagnosing electrical problems in a flood damaged vehicle is nearly impossible. This would take many hours or even days to determine which wiring harnesses and circuits have been affected. Then nearly all of the wiring under the dash would likely require replacement as well as many sensors and switches. On a BMW vehicle, the amount of wires and switches are likely more than that of a lower end vehicle. Due to the inefficiency in cost, you would likely be able to purchase another BMW like yours for less than what it would cost to fix your car. Many insurance companies would consider this type of damage to total out the vehicle unfortuantely.