Ford Problems

The fourth-generation Ford Focus launched in April 2018 and, given the previous generations' long model runs, it is likely there won't be a new generation model launched until at least 2025.

There are four generations of Focus, built since 1998. If you cross-shop parts in between those four broad generations you stand a better chance of finding interchangeable parts.

The generations are, 1998-2005, 2004-2011, 2011-2018, and from 2018-on.

Whatever battery your particular model comes with, which should be written in the owner's manual.

The different engines used in Ford's differing Focus models require different specification batteries so I can't answer that question without more information.

A Trend hatch comes in a 1360kg while the Sport hatch is 1380kg, the Titanium models range between 1403kg (hatch) and 1409kg (sedan), the ST2 hatch is 1425kg, and the all-wheel-drive RS is 1575kg.

The RS because it has the biggest spoilers and makes whooshing noises when you drive fast. Of course, if you can't afford an RS buy the highest spec model you can afford.

They are indicators that show work was done on the differential, but they're not anything should be on concern. Cars have all sorts of marks on them from production, they usually indicate a check has been done along the way.

We haven't had any feedback on the issues you mention, but have had complaints of poor build quality. Your problems would seem to be because of build quality issues.

Press the start button with your foot on the brake, while you wiggle the wheel to the left and right.

Press the grooved buttons on the side of the smart key, then lever the raised centre section on the rear off. Pop the metal key out and, using a metal screwdriver split the key in half by inserting the screwdriver into a slot inside the end of the key. You can then access the battery, prising it out and replacing it.

The oil change process hasn't really changed much in the last 100 years of internal combustion engines, as you need to drain the old oil out, remove the old oil filter, fit a new filter, refit the drain plug and top up the engine with the correct amount of oil. However, some modern cars (like Fords) have sensors in the oil pump that cause problems if you take longer than 10 minutes to change the oil. For this reason I recommend taking your car to a qualified mechanic to have the oil changed to avoid costly engine repairs.