W116 Door Hard to Close? Check & Replace the Latch
“Door hard to close,” “door rattles,” or “door only closes with a good swing” – we hear these descriptions from W116 drivers regularly. The door lock is often suspected first. Frequently, though, the cause lies with its counterpart: the latch, which is bolted to the body and which the door lock engages when closing. After around five decades of use, both parts show wear. This guide shows you how to narrow down the fault pattern, what you can check yourself, and which genuine part number belongs to your side of the car.
Genuine Mercedes-Benz left latch A1167200104 for the W116 model series – tested, like new, free of scratches and rust.
Symptoms
The following signs point to a problem with the latch – but not every one of them is clear-cut. The table helps you interpret them:
| Symptom | Likely cause |
|---|---|
| Door has to be slammed hard, only latches on the second attempt | Latch worn or misaligned, lock does not hit the latch cleanly |
| Closed door rattles on rough roads | Play between lock and latch, contact surface worn in |
| After closing, the door sticks out at the rear or is not flush | Latch shifted in height or depth, mounting loosened |
| Clear wear marks or rust on the striker loop | Wear or corrosion of the latch |
| Door cannot be opened or does not lock, door handle has no effect | More likely the door lock itself or the linkage – see guide Faulty door lock: symptoms, testing & solution |
| Door sags downward when opened, can be lifted at the end | More likely worn door hinges – in that case a new latch alone will not help |
Causes
The latch is a pure wear part with no electrics. Every time the door closes, the door lock slides over the latch and engages behind it – over decades and tens of thousands of door movements, the contact surface wears in. The play between lock and latch grows, and the door starts to rattle or no longer latches in a defined way.
Added to this are corrosion at the mounting, loosened bolts, and earlier repairs: if the latch was removed after paint or body work and not put back in exactly the original position, its position no longer matches the lock. Worn door hinges also change the position of the door, and thus of the lock relative to the latch – this is often wrongly blamed on the latch.
Testing it yourself
Start with the checks that cost nothing:
- Visual inspection: Open the door and look at the latch on the pillar. Clear wear marks, burrs, rust, or a bent part argue for replacement.
- Check the mounting: Check whether the bolts are tight and whether the latch can be moved by hand. Mark the current position with a pen before loosening anything – that way you can find the starting position again.
- Rule out the hinges: Open the door halfway and lift it at the rear end. If the door has noticeable play upward, the problem is with the hinges, not the latch.
- Imprint test: Apply some grease or chalk to the latch and close the door slowly. The imprint on the lock shows whether the lock hits the latch dead center or just grazes it.
- Fine adjustment: If the lock does not hit the latch cleanly, loosen the bolts slightly, shift the latch in small steps, tighten, and test again. If the rattle remains despite correct positioning, the latch is worn.
Solution
If the latch is worn or damaged, replacement is the simplest and cheapest solution. The correct side is important: the part number A1167200104 stands for the left, A1167200204 for the right latch. Both parts are genuine Mercedes-Benz parts for the W116, tested by us and in like-new condition: scratch-free, rust-free, no discoloration. Price per 14,00 €.
Whether the latch is identical for front and rear doors is not stated in the product data. Therefore, compare your old part before installation or send us your VIN via the contact form – we'll check the fitment free of charge.
Left latch A1167200104
W116 · 1972–1980 · Genuine Mercedes-Benz
14,00 €
View offer →
Right latch A1167200204
W116 · 1972–1980 · Genuine Mercedes-Benz
14,00 €
View offer →You can find more parts in the collections Locks & door handles and W116.
Compatible vehicles
| Model series | Model years | Type codes according to product data | Part number |
|---|---|---|---|
| Mercedes-Benz W116 | 1972–1980 | 116.020, 116.024, 116.025, 116.028, 116.029, 116.032, 116.033, 116.036, 116.120 | A1167200104 (left) |
| Mercedes-Benz W116 | 1972–1980 | 116.020, 116.024, 116.025, 116.028, 116.029, 116.032, 116.033, 116.036, 116.120 | A1167200204 (right) |
Other model series are not specified in the product data. If in doubt, we will check the fit using your VIN.
FAQ
How do I recognize a worn latch on the W116?
Typical signs are a door that has to be slammed hard, rattling when closed, and visible wear marks or rust on the striker loop. Rule out worn door hinges beforehand.
Which part number do I need for left and right?
A1167200104 is the left latch, A1167200204 the right latch for the W116. Both are genuine Mercedes-Benz parts and cost 14,00 € each.
Can I replace the latch myself?
The latch is bolted to the pillar and can usually be replaced without special tools. Mark the position of the old latch beforehand and initially fit the new one in the same spot; then fine-tune with the imprint test.
The door cannot be opened at all – is that caused by the latch?
Rarely. If the door cannot be opened or locked, the cause is usually in the door lock or its actuation. You will find hints on this in the guide Faulty door lock.
Does the latch also fit other Mercedes model series?
The product data confirms the fit for the W116 of model years 1972–1980. No fit is specified for other model series. Send us your VIN – we will check it free of charge.
KFZTeile-Thot is a specialist business for tested and refurbished Mercedes parts with its own test benches and has over 1,000 positive eBay reviews. Do you have questions about the latch or about the fit on your W116? Call us: +49 179 8991069 (Mon–Fri 8 am–6 pm) – or use our contact form.