2012 Peugeot 107 1.0 68 – Workshop Service & Repair Manual

2012 Peugeot 107 1.0 68 FWD Manual Gasoline FAQ: Common Problems & Solutions

• Why is water getting into my 2012 Peugeot 107, and how can I fix it?

  Water leaks are quite common. Often, the culprits are the seals around the rear lights in the boot. You can try carefully removing the light fitting, cleaning the area, and applying some sealant like silicone or "Boss White" around the existing foam seal. It's often good practice to check both sides. Sometimes, water also enters through the door membranes, leading to wet footwells. These might need resealing or, in some cases, a replacement. Also, check the seal around the roof antenna, as that's another known spot for drips.

• My 2012 Peugeot 107's engine makes a rattling noise; is this normal, or should I be worried about the timing chain?

  Well, a light ticking or "piston slap" can be a characteristic sound of the 1.0-liter engine, especially when cold, due to its design, and it often changes as the engine warms up. This usually isn't cause for concern. However, if the rattle is quite loud, persistent, or gets worse, particularly on startup, it might indicate a worn or stretched timing chain or a faulty tensioner. This is something you'd want a mechanic to check sooner rather than later, as a stretched chain can lead to serious engine problems if left unaddressed. Trust your ears; if it sounds off, get it looked at.

• What should I do if the power steering becomes heavy or stops working in my 2012 Peugeot 107?

  If your power steering suddenly feels very heavy, especially at low speeds, or the power steering warning light comes on, it often points to an issue with the electric power steering (EPS) ECU. It's a common problem for these models. Sometimes, it might clear if you restart the car, but usually, it becomes permanent. The best course of action is to have a professional diagnose it. Many specialists can repair or remanufacture your existing ECU, which is often a more cost-effective solution than a brand-new replacement part. It’s usually plug-and-play once repaired.

• Why does my 2012 Peugeot 107 sometimes fail to start after very short trips, and what can I do about it?

  It's a bit of a quirky trait! If you often make very short trips where the engine doesn't get a chance to properly warm up, it can sometimes struggle to restart. This happens because the engine initially runs on an enriched fuel mixture. If you switch it off before it's hot enough, some unburnt fuel residue can build up on the spark plug electrodes, preventing them from sparking correctly the next time you try to start. To help avoid this, try to let the engine warm up a little more, even on short runs, or occasionally take it for a longer drive to burn off any deposits.

• Can I replace the spark plugs myself on my 2012 Peugeot 107 1.0, and what tools do I need?

  You certainly can, but it's worth knowing that the 1.0-liter engine in your 2012 Peugeot 107 uses non-standard spark plugs. They have a 12-sided head, which means you'll need a special spark plug wrench for installation and removal. A standard 6-point or 12-point socket might not fit properly or could damage the plugs. While the job itself is straightforward for someone with a bit of mechanical know-how, make sure you source the correct 12-sided spark plug tool before you start. Dealerships definitely have them, but you can find aftermarket ones too.