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Community work recordR230 SL

Mercedes R230 trunk-flap sag and support replacement

NikleinR6 found a sagging passenger-side trunk flap and replaced both supports with a reinforced pair. Later owners add a clearance workaround and their experience after replacement.

Edited by Future Classic ·

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A sagging flap before a roof fault

NikleinR6 checked the trunk flaps after reading other owners’ reports about roof operation. His own Vario roof had not stopped working, but the passenger-side flap was noticeably sagging while the driver’s side was still satisfactory. His annotated photograph explains that excessive sag can prevent the closed-position sensor from registering the flap.

The passenger-side flap before replacement.
The passenger-side flap before replacement.

Access behind the flap mounting arm

In the annotated mounting photograph, the author marks three nuts and describes lowering the flap mounting arm to reach two Torx bolts behind it. Those bolts secure the supporting part being replaced. He reported about 20 minutes on the first side and 10 minutes on the second after learning the layout.

Three marked mounting nuts.
Three marked mounting nuts.
The cable and gear-drive assembly.
The cable and gear-drive assembly.
The mechanism lowered for the exchange.
The mechanism lowered for the exchange.

Replacing both supports with the reinforced pair

The author found an updated support with additional reinforcement and ordered the parts as a pair, replacing both sides. He described the new construction as more resistant to bending and said the adjustment screws had not been useful for restoring flap tension. This is his replacement account rather than a measured durability comparison.

Old and reinforced replacement supports.
Old and reinforced replacement supports.
The photographed historical parts order.
The photographed historical parts order.
Another view of the old and new supports.
Another view of the old and new supports.

Refitting and the finished flap position

The author’s annotations describe transferring the cable and gear drive from the old support to the new one after releasing the rear Torx bolts. The comparison photos show added reinforcement; an ordering photograph records part number 2307500111 and a historical $44.62 shipped price for the pair. New bolts were supplied, and the finished photographs show both flaps against the trunk lid.

New bolts supplied with the parts.
New bolts supplied with the parts.
One of the rear Torx bolts marked by the author.
One of the rear Torx bolts marked by the author.
Both flaps after refitting.
Both flaps after refitting.
The flap sitting against the lid.
The flap sitting against the lid.
The refitted flap from below.
The refitted flap from below.

Gear alignment and a clearance workaround

robdog emphasized meshing the parts snugly and holding the flap tight against the lid before securing it. On a 2007 vehicle, 1bad55 found the flap obstructed Torx-bolt alignment and separated it from the bracket to gain clearance before refitting. 1BGS also reported that removing the flap made installation easier.

A separate owner’s longer-term report

lenzhotrod reported replacing both supports on his wife’s car and said they were still working 20,000 miles later. This is a separate owner’s follow-up, rather than a guaranteed service life for every installation.

Based on the source author’s work record.

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